Those days, many boys use beautiful girls' photos as avatars in forums. So it is pretty hard to tell the gender of a user at the first glance. Last year, our hero went to a forum and had a nice chat with a beauty (he thought so). After that they talked very often and eventually they became a couple in the network. 

But yesterday, he came to see "her" in the real world and found out "she" is actually a very strong man! Our hero is very sad and he is too tired to love again now. So he came up with a way to recognize users' genders by their user names.

This is his method: if the number of distinct characters in one's user name is odd, then he is a male, otherwise she is a female. You are given the string that denotes the user name, please help our hero to determine the gender of this user by his method.


-----Input-----

The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.


-----Output-----

If it is a female by our hero's method, print "CHAT WITH HER!" (without the quotes), otherwise, print "IGNORE HIM!" (without the quotes).


-----Examples-----
Input
wjmzbmr

Output
CHAT WITH HER!

Input
xiaodao

Output
IGNORE HIM!

Input
sevenkplus

Output
CHAT WITH HER!



-----Note-----

For the first example. There are 6 distinct characters in "wjmzbmr". These characters are: "w", "j", "m", "z", "b", "r". So wjmzbmr is a female and you should print "CHAT WITH HER!".

Difficulty: EASY
Tags: String algorithms

Implementation

Complete search
Skill types: Complete search

Starter code:

Solutions:
name = input()
dinstinctLetters = []
for i in range(len(name)):
	if not name[i] in dinstinctLetters:
		dinstinctLetters.append(name[i])
if len(dinstinctLetters) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


class MaleOrFemale:

	def __init__(self):
		self.count = 0
		self.distChars = []

	def countOfChars(self, chars):
		for i in chars:
			if i in self.distChars:
				continue
			else:
				self.count += 1
				self.distChars.append(i)
		return self.count

	def chatOrNot(self, chars):
		count = self.countOfChars(chars)
		if count % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
username = input()
chars = [char for char in username]
inst = MaleOrFemale()
inst.chatOrNot(chars)


a = str(input())
b = []
for i in range(len(a)):
	if a[i] in b:
		continue
	else:
		b.append(a[i])
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
str = set(s)
l = len(str)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
lst = []
for i in range(len(str)):
	if str[i] not in lst:
		lst.append(str[i])
	else:
		continue
if len(lst) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys

def solve():
	a = set(input())
	if len(a) % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
solve()


name = input()
temp = []
cont = 0
for i in name:
	if i not in temp:
		cont += 1
		temp.append(i)
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def is_male(name: str) -> bool:
	return len(set(name)) % 2
name = input()
if not is_male(name):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def get_gender(name: str) -> int:
	characters = set()
	for ch in name:
		characters.add(ch)
	return len(characters) % 2
messages = ['CHAT WITH HER!', 'IGNORE HIM!']
print(messages[get_gender(input())])


user = input()
x = set(user)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = set(input())
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
if len(n) % 2 != 0:
	print('IGNORE HIM!')


x = input()
s = 0
for i in list('abcdefghijklmnopqrstuvwxyz'):
	s = s + (i in x)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = str(input())
lst = [False] * 26
for i in range(len(user)):
	lst[ord(user[i]) - ord('a')] = True
count = 0
for i in range(len(lst)):
	if lst[i]:
		count += 1
print('IGNORE HIM!' if count % 2 == 1 else 'CHAT WITH HER!')


name = [x for x in input()]
new = set(name)
p = len(new)
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l = []
for i in x[:]:
	if i not in l:
		l.append(i)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def check_gender(username):
	words = []
	count = 0
	for word in username:
		if word not in words:
			count += 1
			words.append(word)
	if count % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
name = input()
check_gender(name)


a = input()
a = set(a)
l = len(a)
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
nn = list(n)
p = 0
s = list()
for x in range(len(n)):
	if nn[x] not in s:
		p += 1
		s.append(nn[x])
	else:
		continue
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
characters = []
for i in range(0, len(username)):
	B = username[i]
	characters.append(B)
	characters_final = set(characters)
if int(len(characters_final)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
p = list(n)
lst = list()
for i in p:
	if i not in lst:
		lst.append(i)
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = list(str(input()))
if len(set(t)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
s = len(set(inp))
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
w = []
for i in range(0, len(word)):
	w.append(word[i])
new = set(w)
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
a = set(n)
b = list(a)
l = len(b)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(set(input()))
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
kq = ''
for i in s:
	if i not in kq:
		kq += i
if len(kq) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def mod():
	x = input()
	c = list(x)
	v = list(dict.fromkeys(c))
	if len(v) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
mod()


s = str(input())
L = []
c = 0
for i in s:
	if i not in L:
		c = c + 1
		L = L + [i]
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
distinct_letters = len(set(username))
if distinct_letters % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
s = a.split()
n = 0
b = list()
for l in a:
	if l in b:
		continue
	b.append(l)
	n = n + 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


if not len(set([x for x in input()])) % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_or_girl(word):
	char = set(word)
	char_len = len(char)
	if char_len % 2:
		return print('IGNORE HIM!')
	else:
		return print('CHAT WITH HER!')
boy_or_girl(input())


def main():
	s1 = input()
	s1 = dict.fromkeys(s1)
	if len(s1) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


print(('CHAT WITH HER!', 'IGNORE HIM!')[len(set(input())) % 2])


s = input()
seq = {}
for i in s:
	if i in seq:
		seq[i] += 1
	else:
		seq[i] = 1
if len(seq) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
li = []
for i in s:
	if i not in li:
		li.append(i)
if len(li) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
st = set()
for c in s:
	if c not in st:
		st.add(c)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
a = [i for i in a]
a = set(a)
a = list(a)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
b = ''
for i in range(len(a)):
	if a[i] not in b:
		b = b + a[i]
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


c = 0
s = input()
l = list(set(s))
if len(l) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
x = list(name)
for i in range(x.__len__()):
	if x[i] in x[i + 1:]:
		x[i] = ''
c = 0
for i in x:
	if i != '':
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve():
	s = set(input())
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
solve()


def main():
	s = 'abcdefghijklmnopqrstuvwxyz'
	inp = input()
	c = 0
	for i in s:
		if inp.find(i) >= 0:
			c += 1
	print('CHAT WITH HER!' if c % 2 == 0 else 'IGNORE HIM!')
main()


s = input()
l = []
for x in s:
	if x in l:
		continue
	else:
		l.append(x)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ch_set = set()
for ch in s:
	ch_set.add(ch)
if len(ch_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
new_word = ''
for letter in word:
	if letter not in new_word:
		new_word += letter
if len(new_word) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
mask = 0
for i in s:
	mask = mask | 1 << ord(i) - 97
val = 'CHAT WITH HER!' if bin(mask).count('1') & 1 != 1 else 'IGNORE HIM!'
print(val)


a = input()
a = list(a)
a = set(a)
b = list(a)
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


userName = input()
distinct = []
for i in userName:
	if i not in distinct:
		distinct.append(i)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


palavra = input()
res = ''
leng = len(palavra)
for i in range(0, leng):
	if not palavra[i] in res:
		res = res + palavra[i]
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
unique = ''
sum = 0
for i in word:
	found = False
	for c in unique:
		if i == c:
			found = True
			break
	if not found:
		sum += 1
		unique += i
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


o = input()
n = []
for i in o:
	n.append(i)
m = int(len(n))
n.sort()
k = 1
for i in range(m - 1):
	if n[i] != n[i + 1]:
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = str(input())
word = set(word)
if len(word) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nome = input()
novalista = []
for i in range(len(nome)):
	if nome[i] not in novalista:
		novalista.append(nome[i])
if len(novalista) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


test = list(input())
distinct = set(test)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = set(input())
print('CHAT WITH HER!') if len(A) % 2 == 0 else print('IGNORE HIM!')


import math
s = set()
arr = list(input())
for ch in arr:
	s.add(ch)
n = len(s)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
name = list(n)
names = []
for i in range(len(n)):
	if name[i] not in names:
		names.append(name[i])
if len(names) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = []
lst = input()
count = 0
for i in range(len(lst)):
	flag = 0
	for j in range(i + 1, len(lst)):
		if lst[i] == lst[j]:
			flag = 1
			break
	if flag == 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = str(input())
letters = list(string)
setLetters = set(letters)
if len(setLetters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = input()
number = len(set(line))
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


y = input()
num = ''.join(set(y))
u = len(num)
if u % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = set(x)
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
elif len(y) % 2 != 0:
	print('IGNORE HIM!')


username = str(input())
m = list(username)
k = []
for i in m:
	if i not in k:
		k.append(i)
	else:
		pass
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
characters = list(name)
unique_chars = set(characters)
if len(unique_chars) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
s = set(a)
n = len(s)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for ch in s:
	d[ch] = ch
print('IGNORE HIM!' if len(d) % 2 != 0 else 'CHAT WITH HER!')


ss = input()
cnt = 0
words = {}
for word in ss:
	if word in words:
		words[word] += 1
	else:
		words[word] = 1
		cnt += 1
if cnt % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(input())
distinct = 0
name = list(dict.fromkeys(name))
distinct = len(name)
if distinct % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


count = 0
letters_used = []
string = list(input())
for l in string:
	if l not in letters_used:
		count += 1
		letters_used.append(l)
if len(letters_used) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
kol = 0
for i in a:
	if i not in b:
		b.append(i)
		kol += 1
if kol % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().strip()
s = list(set(s[:len(s)]))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = set([i for i in input()])
x = len(s)
if x % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = list(input())
b = list(set(n))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
elif len(b) % 2 != 0:
	print('IGNORE HIM!')


from collections import Counter
string = list(input())
cou = Counter(string)
f = cou.most_common(len(string))
if len(f) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = list(input())
listt = []
for i in user:
	if i not in listt:
		listt.append(i)
n = len(listt)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def f(lst):
	nums = set()
	for i in lst:
		nums.add(i)
	return len(nums)
condition = f(input())
if condition % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input()
unqs = []
for let in N:
	if not let in unqs:
		unqs.append(let)
print('IGNORE HIM!' if len(unqs) % 2 else 'CHAT WITH HER!')


username = input('')
letters = []
for i in username:
	if i not in letters:
		letters.append(i)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
has = []
for i in s:
	has.append(i)
if len(set(has)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
ct = 0
a = [0] * 26
for i in range(len(x)):
	l = ord(x[i]) - 97
	a[l] += 1
for j in range(len(a)):
	if a[j]:
		ct += 1
if ct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
result = ''.join(set(string))
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = str(input())
charNum = len(user_name)
temp = []
count = 0
for i in user_name:
	if i not in temp:
		count += 1
		temp.append(i)
if charNum > 0 and charNum <= 100 and user_name.islower() and (not user_name.isdigit()):
	if count % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


s = input('')
list1 = list(s)
list2 = []
sum = 0
for i in list1:
	if i not in list2:
		list2.append(i)
if len(list2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
wordList = {x for x in str}
length = len(wordList)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
L = []
for i in n:
	if i not in L:
		L.append(i)
if len(L) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
l = list(s)
l = list(dict.fromkeys(l))
x = len(l)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = list(s)
a = []
for i in s:
	if i in a:
		continue
	elif i not in a:
		a.append(i)
if len(a) % 2 != 0:
	print('IGNORE HIM!')
elif len(a) % 2 == 0:
	print('CHAT WITH HER!')


word = input()
kamus = {}
perbedaan = 0
for alphabet in word:
	if alphabet not in kamus:
		kamus.update({alphabet: 1})
		perbedaan += 1
	else:
		kamus[alphabet] += 1
if perbedaan % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = list(input())
unique_username = []
for i in user_name:
	if i not in unique_username:
		unique_username.append(i)
if len(unique_username) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = tuple(input())
NewName = set(name)
if len(str(NewName)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


di = {}
s = input()
count = 0
for i in s:
	if di.get(i, None) == None:
		di[i] = 1
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
sa = input()
list = set()
for i in sa:
	list.add(i)
count = 0
for i in list:
	count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = sorted(input())
d = 0
for i in range(len(w) - 1):
	if w[i] == w[i + 1]:
		d = d + 1
if (len(w) - d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = [ord(n) for n in input()]
s.sort()
l = 0
p = 0
s = s[::-1]
for n in range(len(s)):
	for k in range(n + 1, len(s)):
		if s[n] == s[k]:
			s[k] = -10
		else:
			continue
for n in range(len(s)):
	if s[n] != -10:
		l += 1
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = [i for i in input()]
chars = set(username)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
d = {}
for i in username:
	d[i] = 0
l = d.keys()
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = set()
for x in s:
	d.add(x)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
str2 = set(str1)
if len(str2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = input()
i = ''.join(set(i))
if len(i) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = {x for x in input()}
b = ('CHAT WITH HER!', 'IGNORE HIM!')
print(b[len(a) % 2])


inp = input()
x = list()
for i in range(len(inp)):
	if inp[i] not in x:
		x.append(inp[i])
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = 0
for c in 'abcdefghijklmnopqrstuvwxyz':
	if s.count(c) > 0:
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
used = []
count = 0
in_list = False
for i in n:
	for j in used:
		if j == i:
			in_list = True
	if in_list == False:
		count += 1
		used.append(i)
	in_list = False
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
new = ''
for i in name:
	if i not in new:
		new = new + i
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = len(n)
v = []
for i in range(l):
	if n[i] not in v:
		v.append(n[i])
	else:
		continue
a = len(str(''.join(v)))
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = set(a)
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
elif c % 2 != 0:
	print('IGNORE HIM!')


L = []
s = input()
d = 1
for i in s:
	L.append(i)
L.sort()
for i in range(1, len(L)):
	if L[i] != L[i - 1]:
		d += 1
if d % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(input())
number = []
for letter in name:
	if letter not in number:
		number.append(letter)
if len(number) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
word_list = []
for i in range(0, len(word)):
	if word[i] not in word_list:
		word_list.append(word[i])
fin_word = ''.join(word_list)
if len(fin_word) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_or_girl():
	name = str(input())
	if name == '':
		print('IGNORE HIM!')
		return
	name = [letter for letter in name]
	letters = set(name)
	n_letters = len(letters)
	if n_letters % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
boy_or_girl()


st = str(input())
x = len(set(st))
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = []
for e in s:
	if e not in d:
		d.append(e)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input('')
list1 = []
m = 0
for i in range(len(s)):
	list1.append(s[i])
l = list(set(list1))
for i in l:
	m += 1
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = ''
a = input()
b = ''.join(set(a))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()

def split(word):
	return list(word)
word = str(n)
k = split(word)
a = set(k)
b = len(a)
if b % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
count = 0
for i in range(len(x)):
	if x[i] not in x[:i]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
k = ''.join(set(n))
m = len(k)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
letters = set()
for i in x:
	letters.add(i)
size = len(letters)
if size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


entrada = input()
arvore = {''}
for i in range(len(entrada)):
	arvore.add(entrada[i])
if not len(arvore) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for i in range(s.__len__()):
	d[s[i]] = 1
if d.__len__() % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
from collections import Counter as C
l = C(s)
if len(l) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = input()
set_st = set(st)
if len(set_st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
array = [0] * 26
tot = 0
for i in x:
	array[ord(i) - 97] += 1
for i in array:
	if i != 0:
		tot += 1
if tot % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


length = len(set(input().lower()))
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
store = set()
for c in inp:
	if c not in store:
		store.add(c)
if len(store) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def getmetrics(name):
	cname = ''
	for sym in name:
		if cname.find(sym) == -1:
			cname += sym
	return len(cname)
name = str(input())
count = getmetrics(name)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
a = []
for i in s:
	if i in a:
		continue
	else:
		a.append(i)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = set(s)
c = len(ss)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = len(set(list(input())))
if x % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
dc = len(s)
output = 'IGNORE HIM!'
duplicates = []
for l in s:
	if s.count(l) > 1 and l not in duplicates:
		duplicates.append(l)
		dc = dc - s.count(l) + 1
if dc % 2 == 0:
	output = 'CHAT WITH HER!'
print(output)


from collections import Counter
s = str(input())
if len(Counter(s).keys()) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def defineSex():
	username = input()
	decision = makeDecision(username)
	printToConsole(decision)

def makeDecision(username):
	unickList = list(dict.fromkeys(username))
	unickListLength = len(unickList)
	if unickListLength % 2 == 0:
		decision = 'CHAT WITH HER!'
	else:
		decision = 'IGNORE HIM!'
	return decision

def printToConsole(decision):
	print(decision)
defineSex()


s = input()
chars = []
for c in s:
	if not c in chars:
		chars.extend([c])
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
count = 0
arr_chk = [0] * 26
for i in range(0, len(n)):
	if arr_chk[ord(n[i]) - 97] == 0:
		arr_chk[ord(n[i]) - 97] += 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alp = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'e', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}
k = set(input())
I = k & alp
if len(I) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def mf(s):
	l = []
	for i in range(0, len(s)):
		l.append(s[i])
	l2 = [s[0]]
	for i in range(1, len(s)):
		if l[i] not in l2:
			l2.append(l[i])
		else:
			l2 = l2
	c = len(l2)
	if c % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
mf(s)


from collections import Counter
User_name = input()
User_occ = Counter(User_name)
if len(User_occ) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


YES = 'CHAT WITH HER!'
NO = 'IGNORE HIM!'
ip = input()
chSet = set(list(ip))
n = len(chSet)
if n % 2 == 0:
	print(YES)
else:
	print(NO)


username = input('')
Letters = set()
for character in username:
	Letters.add(character)
if len(Letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print('CHAT WITH HER!' if len({i for i in input()}) % 2 == 0 else 'IGNORE HIM!')


s = input()
ans = 0
for i in range(len(s)):
	if s[i] not in s[:i]:
		ans += 1
if ans % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	u = str(input())
	cs = set()
	for i in u:
		cs.add(i)
	if len(cs) % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
	return 0
main()


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input().strip().lower()
	return list(s[:len(s)])

def invr():
	return map(int, input().split())
s = set(input().strip())
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
unique = set(s)
L = len(unique)
if L % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
unique = len(set(username))
if unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
l = set(a)
n = 0
for i in l:
	n = n + 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	print('IGNORE HIM!' if len(set(input().strip())) % 2 else 'CHAT WITH HER!')
main()


ch = input()
e = set()
for i in ch:
	e.add(i)
if len(e) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
d = dict()
for i in range(len(st)):
	d[st[i]] = 1
if len(d) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
myList = [name[0]]
counter = 1
for i in range(1, len(name)):
	if name[i] not in myList:
		counter += 1
		myList.append(name[i])
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	return print('IGNORE HIM!' if len(set(input())) % 2 == 1 else 'CHAT WITH HER!')
main()


user = input()

def distinct(user):
	counted = []
	for character in user:
		if not character in counted:
			counted.append(character)
	return len(counted)
if distinct(user) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alph = []
for i in range(0, 26):
	alph.append(0)
s = input()
for letter in s:
	alph[ord(letter) - 97] = 1
count = 0
for i in range(0, 26):
	if alph[i] == 1:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
this = set()
for i in range(0, len(s)):
	this.add(s[i])
if len(this) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(n):
	l = list(n)
	s = set(l)
	count = 0
	for i in s:
		count = count + 1
	if count % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
user = input()
print(solve(user))


chat = input()
val = len(set(chat))
if val % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def s():
	s = input()
	chars = [0 for x in range(26)]
	for x in s:
		chars[ord(x) - 97] += 1
	ans = 0
	for x in chars:
		if x > 0:
			ans += 1
	if not ans % 2 == 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
s()


entrada = input()
letras = ''.join(set(entrada))
if len(letras) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = set()
for f in range(len(s)):
	l.add(s[f])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


symbols = set()
for symbol in input():
	symbols.add(symbol)
print('IGNORE HIM!' if len(symbols) % 2 else 'CHAT WITH HER!')


n = input()
s = set()
for w in n:
	s.add(w)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
x = {}
for i in s:
	x[i] = 0
y = list(x.keys())
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
li = list(s)
li = list(dict.fromkeys(li))
if len(li) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ls = set()
for i in s:
	ls.add(i)
cnt = len(ls)
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
counter = 0
ln = list(name)
ln.sort()
for i in range(1, len(name)):
	if ln[i] == ln[i - 1]:
		counter += 1
n = len(name) - counter
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
m = set(n)
if len(m) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
arr = []
for i in range(len(word)):
	if word[i] not in arr:
		arr.append(word[i])
num = len(arr)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print('chat with her!'.upper() if len(set(input())) % 2 == 0 else 'ignore him!'.upper())


repetition = input()
name = {'testing'}
for letter in repetition:
	name.add(letter)
if (len(name) - 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout, exit as sys_ret
(f_input, f_print, f_flush) = (stdin.readline, stdout.write, stdout.flush)
(string, count) = (f_input().replace('\n', ''), 0)
for i in range(len(string)):
	if string[i] not in string[:i]:
		count += 1
f_print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


a = input()
arr = []
for i in a:
	if i not in arr:
		arr.append(i)
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
if len(set(user_name)) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
s = ''
n = 0
for i in name:
	if i not in s:
		s = s + i
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
name = input()
unique = []
for char in name:
	if char not in unique:
		unique.append(char)
l = len(unique)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def unique(list):
	unique_list = []
	for x in list:
		if x not in unique_list:
			unique_list.append(x)
	return unique_list
x = list(input())
ss = unique(x)
if len(ss) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = list(s)
p = [] + s
l = []
while s:
	c = 0
	a = s[0]
	for i in p:
		if i == a:
			c += 1
	l.append([a, c])
	while a in s:
		s.remove(a)
if len(l) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
if len(list(set(n))) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input())
distinct_chars = []
distinct_chars += name[0]
for i in name:
	found = False
	for x in distinct_chars:
		if i == x:
			found = True
	if found == False:
		distinct_chars += i
if len(distinct_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	username = input()
	dictionary = {}
	for letter in username:
		dictionary[letter] = 1
	if len(dictionary) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = ''
s = input()
a = [0] * 26
count = 0
for i in range(len(s)):
	a[ord(s[i]) - ord('a')] += 1
for j in range(26):
	if a[j] != 0:
		count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
storage = []
for x in name:
	if x not in storage:
		storage.append(x)
if len(storage) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def filterGender(nickname):
	uniqueChar = set()
	for letter in nickname:
		uniqueChar.add(letter)
	return 'CHAT WITH HER!' if len(uniqueChar) % 2 == 0 else 'IGNORE HIM!'

def main():
	nickname = input()
	print(filterGender(nickname))
main()


a = str(input())
surv = len(list(dict.fromkeys(a)))
if surv % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
if len(''.join(set(s))) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


found = set()
count = 0
for char in input():
	if char not in found:
		found.add(char)
		count += 1
print('IGNORE HIM!' if count % 2 else 'CHAT WITH HER!')


n = input()
s = [i for i in n]
al = []
for i in s:
	if i in al:
		continue
	else:
		al += i
if len(al) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


q = set()
s = input()
for i in range(len(s)):
	q.add(s[i])
if len(q) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def enjoy(world):
	xo = [x for x in world]
	xoo = set(xo)
	if len(xoo) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
n = str(input())
enjoy(n)


x = input()
count = 0
count = len(set(x))
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = dict()
x = 0
for c in s:
	if c not in d:
		d[c] = 1
		x += 1
if x & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
final = ''
for letra in username:
	if not final.__contains__(letra):
		final = final + letra
if len(final) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
l = len(n)
A = set('')
i = 0
while i < l:
	A.add(n[i])
	i = i + 1
g = len(A)
if g % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input()
	return list(s[:len(s) - 1])

def invr():
	return map(int, input().split())

def countX(lst, x):
	count = 0
	for ele in lst:
		if ele == x:
			count = count + 1
	return count
n = str(input())
s = len(set(n))
if s % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
c = [str(s) for s in a]
set1 = set(c)
if len(set1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = [ord(c) for c in s]
s = set(s)
s = len(s)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def distinct(s):
	d = s[0]
	counter = 0
	for l in s[1:]:
		if l not in d:
			d += l
	return len(d)
if distinct(input()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = input()
n = set()
for i in m:
	n.add(i)
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
d = {}
for i in name:
	d[i] = 0
nc = 0
for (k, v) in d.items():
	nc += 1
if nc % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


(v, mm, n) = (0, 0, 0)
arr = [0] * 150
s = input()
for i in s:
	arr[ord(i)] += 1
for i in arr:
	if i > 0:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
if len(set(username)) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = input('')
list = []
for let in user:
	if let not in list:
		list.append(let)
	else:
		continue
if len(list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
hashmap = {}
for char in inp:
	if char in hashmap:
		continue
	else:
		hashmap[char] = 1
if len(hashmap) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = 0
d = 0
for i in a:
	d = d + 1
	c = a[d:]
	if i in c:
		b = b
	else:
		b = b + 1
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = str(input())
uniq = []
for c in inp[:]:
	if c not in uniq:
		uniq.append(c)
if len(uniq) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
count = 0
var = [0] * 30
for i in s:
	if var[ord(i) - 97] == 0:
		count += 1
	var[ord(i) - 97] = 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
m = []
for i in s:
	if i not in m:
		m.append(i)
if len(m) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


usuario = input('')
n = len(usuario)
c = 0
for i in range(n):
	if usuario[i] in usuario[i + 1:n]:
		c = c + 1
p = n - c
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
n = 0
str0 = 'qwertyuiopasdfghjklzxcvbnm'
for i in range(len(str0)):
	if str0[i] in str:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s1 = set(s)
if len(s1) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(set(s)) & 1])


from sys import stdin
u = set(stdin.readline().rstrip())
print(('CHAT WITH HER!', 'IGNORE HIM!')[len(u) % 2])


def u(s):
	list = []
	for i in range(len(s)):
		if s[i] not in list:
			list.append(s[i])
	return len(list)
if u(input()) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input()).lower()
s2 = ''
for i in s:
	if i not in s2:
		s2 += i
if len(s2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
words = [word for word in s]
a = sorted(list(set(words)))
if len(a) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
counter = 0
check = []
for i in range(len(string)):
	check.append(True)
for i in range(len(string)):
	if check[i]:
		for j in range(i + 1, len(string)):
			if string[i] == string[j]:
				check[j] = False
for i in range(len(string)):
	if check[i]:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
setter = set(name)
if len(setter) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
letters = []
for i in range(0, len(name)):
	if name[i] in letters:
		continue
	else:
		letters.append(name[i])
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
i = 0
while len(s) > 0:
	s = s.replace(s[0], '')
	i = i + 1
print('CHAT WITH HER!' if i % 2 == 0 else 'IGNORE HIM!')


s = input()
new_s = ''.join(dict.fromkeys(s))
if len(new_s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = list(s)
c = 0
x = []
for i in s:
	if i not in x:
		x.append(i)
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(dict.fromkeys(list(input())))
print('CHAT WITH HER!' if len(n) % 2 == 0 else 'IGNORE HIM!')


userinput = input()
userlist = list(userinput)
uniquelist = set(userlist)
uniquelistcount = len(uniquelist)
if uniquelistcount % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = input()
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(set(ch)) % 2 == 1])


s = input()
l = []
l.append(s[0])
ctr = 1
result = False
for i in range(1, len(s)):
	if s[i] in l:
		result = True
	else:
		ctr += 1
	l.append(s[i])
if ctr % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = []
l = input()
k = []
c = 0
for i in l:
	if i not in k:
		k.append(i)
		c += 1
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = list(input())
l = len(dict.fromkeys(a))
if l % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


line = input()
n = len(line)
s = []
for i in range(n):
	s.append(line[i])
s.sort()
for i in range(n - 1):
	if s[i] == s[i + 1]:
		n -= 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
strset = set(str)
if len(strset) & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_girl(name):
	size = ''.join(set(name))
	if len(size) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
name = input()
boy_girl(name)


x = input()
y = 0
for i in range(len(x)):
	a = x[i]
	z = 0
	for j in range(i + 1, len(x)):
		b = x[j]
		if not z and a == b:
			z = 1
	if z:
		y += 1
y = len(x) - y
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = set(name)
if s.__len__() % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
count = 0
darozi = 0
init = []
listed = list(word)
for i in range(len(listed) - 1):
	if listed.count(listed[i]) > 1 and listed[i] not in init:
		count = count + (listed.count(listed[i]) - 1)
		init.append(listed[i])
darozi = len(listed) - count
if darozi % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


char_name = input()
lst_letters = []
for current_character in char_name:
	lst_letters.append(current_character)
unique = list(set(lst_letters))
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p_mes = 'CHAT WITH HER!'
n_mes = 'IGNORE HIM!'
alps = [0 for i in range(26)]
un = input().strip()
count = 0
for c in un:
	i = ord(c) - ord('a')
	if alps[i] == 0:
		count += 1
		alps[i] = 1
print(n_mes if count % 2 else p_mes)


txt = input()
cin = 0
cout = 0
for i in txt:
	if cin == txt.index(i):
		cout += 1
	cin += 1
if cout % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p = input()
cnt = 0
for i in range(26):
	if chr(i + ord('a')) in p:
		cnt += 1
print('CHAT WITH HER!' if cnt % 2 == 0 else 'IGNORE HIM!')


n = input()
list = []
list.extend(n)
s = set(list)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
n = len(s)
al = []
for i in range(n):
	if s[i] not in al:
		al.append(s[i])
if len(al) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
seen = []
for char in s:
	if char in seen:
		pass
	else:
		seen.append(char)
if len(seen) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = [char for char in input()]
username = {char for char in username}
if len(username) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	line = input()
	out = []
	for i in line:
		if i not in out:
			out.append(i)
	print('CHAT WITH HER!' if len(out) % 2 == 0 else 'IGNORE HIM!')
main()


from collections import OrderedDict
foo = str(input())
result = ''.join(OrderedDict.fromkeys(foo))
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = {x for x in s}
if len(a) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = list(str(input()))
l = []
count = 0
if 1 <= len(n) <= 100:
	for elem in n:
		if elem not in l:
			l.append(elem)
length = len(l)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = []
for i in range(len(s)):
	arr.append(s[i])
arr = sorted(arr)
x = 0
for i in range(len(arr) - 1):
	if arr[i] == arr[i + 1]:
		x += 1
letters = len(arr) - x
if letters % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = set()
i = 0
while i < len(x):
	y.add(x[i])
	i += 1
if len(y) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user_name = input()
unique_lets = set(user_name)
if len(unique_lets) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for i in a:
	if i not in b:
		b += [i]
c = len(b)
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
i = ''.join(set(x))
for j in range(len(i)):
	j += 1
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l1 = list(n)
s1 = set(l1)
length = len(s1)
if length % 2 != 0:
	print('IGNORE HIM!')
if length % 2 == 0:
	print('CHAT WITH HER!')


strin = input()
characters = set()
for i in strin:
	characters.add(i)
numOfDistChar = len(characters)
if numOfDistChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
new = []
for item in username:
	if item not in new:
		new.append(item)
num = len(new)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
x = 0
test = ''
for i in range(0, len(s)):
	for j in range(0, len(test)):
		if s[i] == test[j]:
			break
	else:
		test = test + s[i]
		x = x + 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strs = input()
list_strs = list(strs)
list_s = sorted(list_strs)
sums = 0
for i in range(len(list_s) - 1):
	if list_s[i] == list_s[i + 1]:
		sums += 0
	elif list_s[i] != list_s[i + 1]:
		sums += 1
ks = sums + 1
if ks % 2 == 0:
	print('CHAT WITH HER!')
elif ks % 2 != 0:
	print('IGNORE HIM!')


def chat(line):
	if len(line) <= 100:
		operable = list(set(line))
		counter = 0
		for i in operable:
			counter += 1
		if counter % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
a = str(input())
chat(a)


n = input()
l = list(n)
b = []
for i in l:
	if i not in b:
		b.append(i)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
A = sorted(A)
S = []
counter = 0
for i in range(len(A)):
	if A[i] in A[i + 1:]:
		continue
	else:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin

def main():
	st = stdin.readline().rstrip()
	z = len(set(st))
	if z % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


string = input()
n = len(string)
arr = [0 for i in range(26)]
count = 0
for i in range(n):
	temp = ord(string[i]) - 97
	if arr[temp] == 0:
		count += 1
		arr[temp] += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
mylist = []
for i in range(len(username)):
	if username[i] not in mylist:
		mylist[0:0] = username[i]
num = len(mylist)
print('CHAT WITH HER!' if num % 2 == 0 else 'IGNORE HIM!')


text = input()
it = 0
it2 = 0
new_text = ''.join(set(text))
if len(new_text) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input().lower())
name = list(dict.fromkeys(name))
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = str()
n = 0
for i in a:
	if i not in b:
		b = b + i
		n = n + 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
print(('CHAT WITH HER!', 'IGNORE HIM!')[len(set(stdin.readline().strip())) & 1])


ARR = input()
COUNT_ARR = dict()
count = 0
for i in range(len(ARR)):
	COUNT_ARR[ARR[i]] = 1
for (k, v) in COUNT_ARR.items():
	count += v
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = input()
fridge = [i for i in nickname]
fridge = set(fridge)
if len(fridge) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_string = input()
number_list = []
for i in input_string:
	if number_list.count(i) == 0:
		number_list.append(i)
if len(number_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve_boy_or_girl_problem(text):
	text = set(text)
	if len(text) == 0:
		return None
	if len(text) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
text = input().strip()
result = solve_boy_or_girl_problem(text)
print(result)


def isBoyOrGirl():
	name = [x for x in input()]
	newSet = set(name)
	if len(newSet) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(isBoyOrGirl())


from collections import Counter
name = input().strip()
print('CHAT WITH HER!' if len([k for (k, v) in Counter(name).items()]) % 2 == 0 else 'IGNORE HIM!')


s = input()
a = []
for i in range(26):
	a.append(0)
n = len(s)
cnt = 0
for i in range(n):
	nn = ord(s[i])
	a[nn - ord('a')] += 1
for i in range(26):
	if a[i] == 0:
		continue
	else:
		cnt += 1
if cnt % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = dict()
lst = []
for i in s:
	if i in d:
		d[i] += 1
	else:
		d[i] = 1
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
word = stdin.readline().strip().lower()
l = set(list(word))
if len(l) % 2 == 0:
	result = 'CHAT WITH HER!'
else:
	result = 'IGNORE HIM!'
stdout.write(result)
stdout.write('\n')


input_ = input()
new_string = ''
nondistinct = []
alphabet = 'abcdefghijklmnopqrstuvwxyz'
for letter in input_:
	if input_.count(letter) == 1:
		new_string += letter
	else:
		new_string += letter
		nondistinct.append(letter)
for letter in nondistinct:
	new_string = new_string.replace(letter, '')
	alphabet = alphabet.replace(letter, '')
if (len(new_string) + 26 - len(alphabet)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
num = 1
for i in range(1, len(name)):
	if name[i] not in name[0:i]:
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
x = set(s)
count = 0
for i in x:
	count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


uname = input()
nmset = set()
distchar = 0
for each in uname:
	if each in nmset:
		pass
	else:
		nmset.add(each)
		distchar += 1
if distchar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string1 = input()
new_list = []
another_list = []
for i in range(len(string1)):
	if string1[i] not in new_list:
		new_list.append(string1[i])
	else:
		another_list.append(string1[i])
if len(new_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = []
for i in range(0, len(s)):
	a.append(s[i])
a = sorted(set(a))
if len(a) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str1 = input()
l = list(str1)
l_set = set(l)
if len(l_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
lst = []
c = 0
for i in range(len(x)):
	if x[i] not in lst:
		lst.append(x[i])
for i in lst:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strn = input()
sayi = len(set(strn))
if sayi % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
list1 = []
for i in range(len(s)):
	if s[i] not in list1:
		list1.append(s[i])
if len(list1) % 2 == 0:
	print('CHAT WITH HER!')
if len(list1) % 2 != 0:
	print('IGNORE HIM!')


from sys import stdin, stdout
st = stdin.readline().strip()
re = []
for i in st:
	if i not in re:
		re.append(i)
if len(re) % 2 == 0:
	stdout.write('CHAT WITH HER!')
else:
	stdout.write('IGNORE HIM!')


x = input()
c = 0
for i in range(97, 123, +1):
	if x.find(chr(i)) != -1:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = str(input())
count = 0
for i in 'qwertyuiopasdfghjklzxcvbnm':
	if i in word:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
m = [0 for i in range(26)]
for i in range(len(s)):
	m[ord(s[i]) - ord('a')] += 1
sum = 0
for i in range(26):
	if m[i] != 0:
		sum += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


u = input()
t = set(u)
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = [0] * 26
cnt = 0
for i in s:
	x = ord(i) - 97
	if l[x] == 0:
		l[x] = 1
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nombre = input()
revisados = []
num = 0
for c in nombre:
	if c not in revisados:
		revisados.append(c)
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


(username, pocet) = (input(), 0)
for i in range(len(username)):
	if username[i] not in username[:i]:
		pocet += 1
if pocet % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ip = input()
chat = set()
count = 0
for i in range(len(ip)):
	if ip[i] not in chat:
		count += 1
		chat.add(ip[i])
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mot = input()
l = []
res = 0
for i in mot:
	if not i in l:
		l.append(i)
		res += 1
if res % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
d = {}
count = 0
for char in s:
	if char not in d.keys():
		count += 1
		d[char] = 1
	else:
		d[char] += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


print(['IGNORE HIM!', 'CHAT WITH HER!'][len(set(input().lower())) % 2 == 0])


from collections import Counter
while True:
	s = str(input())
	if len(s) <= 100:
		break
string = Counter(s)
if len(sorted(string)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


wordlist = input()
alphbat = list('abcdefghijklmnopqrstuvwxyz')
n = 0
for i in alphbat:
	if i in wordlist:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


kata = input()
data = []
for i in kata:
	data += [i]
data.sort()
penentu = []
for j in range(len(data)):
	if j < len(data) - 1:
		if data[j] != data[j + 1]:
			penentu += [data[j]]
	else:
		penentu += [data[j]]
if len(penentu) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
d = []
for l in w:
	if l not in d:
		d.append(l)
if len(d) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	s = input()
	c = len(set(s))
	if c % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


def duplicate(name):
	unique_list = []
	for a in name:
		if a not in unique_list:
			unique_list.append(a)
	return len(unique_list)
name = input()
result = duplicate(name)
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def get_values():
	name = input()
	if len(name) > 100:
		return
	name_list = [m for m in name]
	result = []
	for i in name_list:
		if i not in result:
			result.append(i)
	if len(result) % 2 == 0:
		return print('CHAT WITH HER!')
	return print('IGNORE HIM!')
get_values()


numbers = input()
uniques = []
count = 0
for number in numbers:
	if number not in uniques:
		count = count + 1
		uniques.append(number)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
new = str(set(string))
if len(new) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
s = ''.join(set(username))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Name = input()
differentChar = ''
for a in Name:
	if differentChar.find(a) == -1:
		differentChar += a
if len(differentChar) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	a = input()
	us = [0] * 27
	cnt = 0
	for i in range(len(a)):
		x = ord(a[i]) - ord('a')
		if us[x] == 0:
			cnt += 1
			us[x] = 1
	if cnt % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


from math import *
s = set(input())
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
w = list(w)
c = 0
a = []
for i in range(len(w)):
	if w[i] not in a:
		a.append(w[i])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
w = 'CHAT WITH HER!'
m = 'IGNORE HIM!'
size = len(s)
count = 0
Statement = False
letter = 'qwertyuiopasdfghjklzxcvbnm'
for i in range(len(letter)):
	Statement = letter[i] in s
	if Statement == True:
		count = count + 1
if count % 2 == 0:
	print(w)
else:
	print(m)


set1 = set()
string = input()
for i in range(0, len(string)):
	set1.add(string[i])
if len(set1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for alpha in a:
	if alpha not in b:
		b.append(alpha)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = str(input())
unique = []
for char in string[:]:
	if char not in unique:
		unique.append(char)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
for i in s:
	if s.count(i) > 1:
		s = s.replace(i, '', 1)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


r = set(input())
b = len(r)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
from math import factorial as fact
write = stdout.write
number = stdin.readline().strip()
if len(set(list(number))) % 2 == 0:
	write('CHAT WITH HER!')
else:
	write('IGNORE HIM!')


x = input('')
new_str = ''
for i in x:
	if i not in new_str or new_str == '':
		new_str = new_str + i
a = len(new_str)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
n1 = len(name)
list1 = []
for i in range(n1):
	if name[i] not in list1:
		list1.append(name[i])
name2 = ''.join(list1)
n2 = len(name2)
if n2 % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
l = []
for i in range(len(s)):
	l.append(s[i])
l.sort()
count = 1
for i in range(len(l) - 1):
	if l[i] != l[i + 1]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


(s, d) = (input(), 0)
s1 = s
for i in s:
	if i in s1:
		d += 1
		s1 = s1.replace(i, '')
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nome = list(input())
tam = len(nome)
iguais = 0
distintos = 0
for i in range(0, tam):
	flag = False
	if nome[i] != -1:
		for j in range(i + 1, tam):
			if nome[j] == nome[i]:
				flag = True
				nome[i] = -1
				iguais += 1
		if flag == False:
			distintos += 1
if distintos % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = 0
for i in range(1, len(n)):
	for j in range(i, 0, -1):
		if n[i] == n[j - 1]:
			break
	else:
		d += 1
if d % 2 != 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
distinct = []
for char in name:
	if char not in distinct:
		distinct.append(char)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def is_girl(username):
	if len(username) % 2 == 0:
		return True
	return False
un = set(input())
if is_girl(un):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
arr = []
for char in n:
	if char not in arr:
		arr.append(char)
if len(arr) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = list(input())
distinct = []
for i in range(0, len(n)):
	if n[i] not in distinct:
		distinct.append(n[i])
ans = len(distinct)
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = str(input())
b = sorted(a)
check = 0
for i in range(len(a) - 1):
	if b[i] == b[i + 1]:
		check += 1
total = abs(check - len(a))
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
list = []
b = len(a)
list2 = []
for i in range(b):
	list.append(a[i])
k = 0
f = 0
for i in list:
	for j in range(f + 1, b):
		if i == list[j]:
			k = 1
	if k == 0:
		list2.append(i)
	k = 0
	f += 1
d = len(list2)
if d % 2 == 0:
	print('CHAT WITH HER!')
if d % 2 != 0:
	print('IGNORE HIM!')


def boy_or_girl(name):
	distinct_letters = set(name)
	if len(distinct_letters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
name = input()
boy_or_girl(name)


c = ''.join(set(input()))
x = len(c)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
for c in sys.stdin:
	a = set([])
	for d in c.strip():
		a.add(d)
	print('IGNORE HIM!' if len(a) % 2 != 0 else 'CHAT WITH HER!')


dict = {}
s = input()
for n in s:
	if n in dict.keys():
		dict[n] += 1
	else:
		dict[n] = 1
if len(dict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = set(input())
A.union(A)
AA = int(len(A))
i = 0
m = 1
q = 5
while q == 5:
	if AA == m:
		print('IGNORE HIM!')
		break
	m += 2
	if AA == i:
		print('CHAT WITH HER!')
		break
	i += 1


a = input()
s = a.replace('_', '')
i = len(set(s))
if i % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
a = list(set(a))
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
elif len(a) % 2 != 0:
	print('IGNORE HIM!')


user = input()
dict = {}
for i in user:
	if i in dict:
		dict[i] += 1
	else:
		dict[i] = 1
if len(dict.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
c = 0
for i in range(len(a)):
	d = list(set(a))
b = len(d)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
n = set(n)
n = list(n)
c = len(n)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
l = []
for i in a:
	l.append(i)
s = set(l)
m = list(s)
i = len(m)
if i % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
t = input()
a = collections.Counter(t)
l = len(a)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
y = ''.join(set(x))
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
dic = {}
for each in s:
	if each not in dic:
		dic[each] = 0
	dic[each] += 1
x = list(dic)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dis = []
for k in name:
	if k not in dis:
		dis.append(k)
if len(dis) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n = list(n)
l = []
for _ in n:
	if _ not in l:
		l.append(_)
k = len(l)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
m = set(n)
l = len(m)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
n = len(str)
set1 = set(str)
dis = len(set1)
if dis % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
arr = []
arr[:] = username
unique = []
for letter in arr:
	if letter not in unique:
		unique.append(letter)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = {}
for i in n:
	d[i] = True
if len(d) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


v = input()
vv = []
for i in v:
	vv.append(i)
v = set(v)
if len(v) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	from sys import stdin, stdout
	if len(set(stdin.readline().strip())) & 1:
		stdout.write('IGNORE HIM!')
	else:
		stdout.write('CHAT WITH HER!')
main()


def d_and_y():
	name = input()
	if len(set(name)) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(d_and_y())


s = list(str(input()))
unique = []
for i in s:
	if i not in unique:
		unique.append(i)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


y = input()
y = y.lower()
n = 0
for i in range(97, 123):
	if chr(i) in y:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


seen = []
counter = 0
string = list(input())
for i in range(len(string)):
	if string[i] not in seen:
		counter += 1
	seen.append(string[i])
print('IGNORE HIM!' if counter % 2 else 'CHAT WITH HER!')


i = input()
s = []
for j in i:
	s.append(j)
characters = 0
j = 0
while j < len(s):
	c = s[j]
	count = s.count(c)
	for i in range(count):
		j -= 1
		s.remove(c)
	characters += 1
	if j < 0:
		j = 0
	else:
		j += 1
if characters % 2 != 0 or characters == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
z = 0
non = []
for _ in string:
	if _ not in non:
		non.append(_)
if len(non) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
names = dict()
Z = ''.join(set(x))
if len(Z) % 2 == 0:
	print('CHAT WITH HER!')
elif len(Z) % 2 == 1:
	print('IGNORE HIM!')
else:
	quit()


s = input()
string = list(s)
z = []
for i in string:
	if not i in z:
		z.append(i)
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
sa = []
for char in string:
	sa.append(char)
sa = list(set(sa))
if len(sa) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


I1 = input()
I2 = []
for i in range(len(I1)):
	if i == 0:
		I2.append(I1[0])
	else:
		for j in range(0, i):
			if I1[i] == I1[j]:
				break
		else:
			I2.append(I1[i])
I3 = ''.join(I2)
if len(I3) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = []
for char in s:
	if char not in a:
		a.append(char)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
count = 0
letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
for i in range(len(letters)):
	if letters[i] in a:
		count += 1
	else:
		continue
if count % 2 == 0:
	print('CHAT WITH HER!')
elif count % 2 != 0:
	print('IGNORE HIM!')


l = []
checker = []
user_name = input()
for i in range(len(user_name)):
	l.append(user_name[i])
for j in l:
	if j not in checker:
		checker.append(j)
if len(checker) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input('')
str_low = str.lower()
if len(set(str_low)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = [0] * 26
cnt = 0
for i in s:
	if a[ord(i) - ord('a')] == 0:
		cnt += 1
		a[ord(i) - ord('a')] = 1
if cnt & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter

def boyOrGirl():
	s = input().strip()
	c = Counter(s)
	l = len(c.keys())
	if l % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(boyOrGirl())


a = input('')
p = 0
x = []
for i in range(len(a)):
	if not a[p] in x:
		x.append(a[p])
	p = p + 1
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
charset = set()
count = 0
for c in s:
	if c not in charset:
		charset.add(c)
		count += 1
if count % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = set()
a = input()
name.update(a)
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


vec = []
txt = str(input())
diff = 0
for i in txt:
	if vec.count(i) == 0:
		vec.append(i)
		diff += 1
if diff % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
letter_count = dict()
distinct = 0
for char in user_name:
	count = letter_count.get(char, None)
	if count is None:
		letter_count[char] = 0
	else:
		letter_count[char] = 0
distinct = len(letter_count)
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
x = ''
c = 0
for i in a:
	if i in x:
		pass
	else:
		x += i
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list()
for letter in s:
	if letter not in l:
		l.append(letter)
	else:
		continue
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
distinct_c = set(username)
distinct_c_num = len(distinct_c)
if distinct_c_num % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


palavra = input()
palavra = palavra.lower()
dicionario = {}
for letra in palavra:
	if letra not in dicionario:
		dicionario[letra] = 0
	dicionario[letra] += 1
if len(dicionario) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
o = 0
c = 0
for i in range(len(n)):
	for j in range(1 + i, len(n)):
		if n[i] == n[j]:
			o = 1
	if o == 1:
		c += 1
		o = 0
s = len(n) - c
if s % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str1 = input()
d = {}
for i in str1:
	if i in d:
		d[i] += 1
	else:
		d[i] = 1
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
lenght = int(len(set(word)))
if lenght // 2 == lenght / 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = []
for item in s:
	if item not in l:
		l.append(item)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter

def Gender(s):
	n = Counter(s)
	if len(n) % 2 == 1:
		return 'IGNORE HIM!'
	if len(n) % 2 == 0:
		return 'CHAT WITH HER!'
x = input()
print(Gender(x))


a = list(input())
a = list(set(a))
k = ''.join(a)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
x = sorted(x)
i = 0
c = 0
while i < len(x) - 1:
	if x[i] == x[i + 1]:
		c += 1
	i += 1
m = len(x) - c
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import io

def run(test, res):
	x = io.StringIO()
	with io.StringIO(test) as sys.stdin:
		with x as sys.stdout:
			work()
			z = x.getvalue().strip()
	sys.stdout = sys.__stdout__
	print(z == test)
	print(res)
	print(z)

def work():
	a = set(input())
	print('IGNORE HIM!' if len(a) % 2 == 1 else 'CHAT WITH HER!')

def test():
	run('wjmzbmr', 'CHAT WITH HER!')
	run('xiaodao', 'IGNORE HIM!')
	run('sevenkplus', 'CHAT WITH HER!')
if len(sys.argv) > 1:
	test()
else:
	work()


a = input()
l = []
for i in range(len(a)):
	if not a[i] in l:
		l.append(a[i])
L = len(l)
if L % 2 == 0:
	R = 'CHAT WITH HER!'
else:
	R = 'IGNORE HIM!'
print(R)


x = input()
l = []
for i in x:
	l.append(i)
k = set(l)
q = len(k)
if q % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
x = set(a)
y = ''.join(x)
z = len(y)
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ar = list(s)
se = set(ar)
if len(se) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout

def sin():
	return stdin.readline().rstrip()

def listInput():
	return list(map(int, sin().split()))

def printBS(li):
	if not li:
		return
	for i in range(len(li) - 1):
		stdout.write('%d ' % li[i])
	stdout.write('%d\n' % li[-1])
st = set([])
s = sin()
for i in s:
	st.add(i)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
r = len(set(s))
if r & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


masukan = input()
nilai = 0
for i in range(0, len(masukan)):
	nilai = nilai + 1
	poin = 0
	for j in range(0, i):
		if masukan[i] == masukan[j] and i != j:
			poin = poin + 1
	if poin > 0:
		nilai = nilai - 1
if nilai % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = list(map(str, input()))
aa = []
for b in x:
	x = x[1:]
	if b in x:
		continue
	else:
		aa.append(b)
if len(aa) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
check = []
for i in range(len(a)):
	if a[i] not in check:
		check.append(a[i])
length = len(check)
if length % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


gender = input()
lst = list()
count = 0
for x in gender:
	if x not in lst:
		lst.append(x)
y = len(lst)
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stri = input()
arr = [0] * 26
for i in range(len(stri)):
	arr[ord(stri[i]) - 97] += 1
count = 0
for i in range(26):
	if arr[i] > 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = len(list({}.fromkeys(list(input())).keys()))
if x % 2 == 0:
	print('CHAT WITH HER!')
if x % 2 == 1:
	print('IGNORE HIM!')


str_var = str(input())

def split_str(x):
	return [i for i in x]
str_list = split_str(str_var)
if len(list(set(str_list))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
myset = set(s)
l = len(myset)
if l % 2 == 1:
	print('IGNORE HIM!')
if l % 2 == 0:
	print('CHAT WITH HER!')


username = input().lower()
letter_count = set(username)
if (letter_count != '' and len(letter_count)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ip = input()
l = list(set(ip))
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
a = Counter(input())
b = {}
for (key, value) in a.items():
	b[key] = value
a = []
for el in b.keys():
	a.append(el)
if len(a) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


p = input()
chars = []
t = 0
for char in p:
	if char not in chars:
		chars.append(char)
		t += 1
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = str(input())
l = []
for i in st:
	l.append(i)
s = set(l)
if len(s) % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def f(n):
	if len(set(n)) % 2 != 0:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
a = input()
print(f(a))


a = input()
d = {}
n = 0
for i in range(len(a)):
	if a[i] not in d:
		n += 1
		d[a[i]] = i
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
l = list(a)
s = set(l)
p = list(s)
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
username = list(username)
length = len(username)
new_list = []
for x in username:
	if x not in new_list:
		new_list.append(x)
if len(new_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = ''
c = 0
for i in range(len(s)):
	if not s[i] in a:
		a += s[i]
for j in range(len(a)):
	c += s.count(a[j]) - 1
if (len(s) - c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
distinct = {}
for c in n:
	if c not in distinct:
		distinct[c] = 1
	else:
		distinct[c] += 1
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ARR = input()
COUNT_ARR = dict()
count = 0
for i in range(len(ARR)):
	COUNT_ARR[ARR[i]] = 1
LE = len(list(COUNT_ARR.values()))
l = list(COUNT_ARR.values())
for i in range(LE):
	count += l[i]
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list((char for char in input()))
n = set(n)
length = len(n)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
string = []
string = set(s)
length = len(string)
if length % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
c = 0
a = []
for i in s:
	if i in a:
		c = c + 1
	else:
		a.append(i)
l = len(a)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
temp = ''
number = 0
for chr in word:
	if chr not in temp:
		number += 1
		temp += chr
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
counter = 0
znach = []
counter = 0
for i in range(26):
	znach.append(0)
for i in range(len(name)):
	znach[ord(name[i]) - ord('a')] += 1
for i in range(26):
	if znach[i] > 0:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = set(s)
s1 = list(s)
a = len(s1)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_string = input()
map = {}
for i in range(0, len(input_string)):
	if input_string[i] in map:
		map[input_string[i]] += 1
	else:
		map[input_string[i]] = 1
if len(map) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = 0
s = sorted(s)
for i in range(len(s) - 1):
	if s[i] == s[i + 1]:
		k += 1
k = len(s) - k
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
chars = []
for x in s:
	if x not in chars:
		chars.append(x)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print('CHAT WITH HER!' if not len(set(input().strip())) % 2 else 'IGNORE HIM!')


x = input()
count = 0
seen = []
for xs in x:
	if xs in seen:
		continue
	else:
		count = count + 1
		seen.append(xs)
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


S = list(input())
s = []
for dis in S:
	if dis not in s:
		s.append(dis)
l = len(s)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


entry1 = input()
entry = list(entry1)
entry.sort()
n = len(entry)
result = 0
for i in range(n - 1):
	if entry[i] != entry[i + 1]:
		result = result + 1
result = result + 1
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = input()
result = ''.join(dict.fromkeys(m))
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
hashset = {str[0]}
for _ in str:
	if _ not in hashset:
		hashset.add(_)
if len(hashset) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
p = []
i = 0
l = len(s)
while i < l:
	p.append(s[i])
	i = i + 1
d = {0}
j = 0
o = len(p)
while j < o:
	d.add(p[j])
	j = j + 1
h = len(d) - 1
if h % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
list1 = list(str1)
str2 = ''.join(set(str1))
if len(str2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = set(x)
l = len(y)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
v = ''.join(set(s))
if len(v) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


_word = input()
_word.lower()
new_string = _word[0]
for i in range(len(_word)):
	if _word[i] not in new_string:
		new_string = new_string + _word[i]
if len(new_string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
inf = sys.stdin
string = str(inf.readline()).strip()
unique = []
for char in string[:]:
	if char not in unique:
		unique.append(char)
print('CHAT WITH HER!' if len(unique) % 2 == 0 else 'IGNORE HIM!')


a = list(input())
aa = set(a)
if len(aa) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
(i, j, d) = (0, 1, 0)
h = 0
list = []
list1 = []
while i < len(s):
	list.append(s[i])
	i = i + 1
list1.append(list[0])
while j < len(list):
	d = 0
	h = 0
	while d < len(list1):
		if list[j] != list1[d]:
			h = h + 1
		d = d + 1
	if h == len(list1):
		list1.append(list[j])
	j = j + 1
if len(list1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n.lower()
b = []
for i in n:
	b.append(i)
s = set(b)
d = list(s)
l = len(d)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
distinct_characters = []
for c in user_name:
	if c not in distinct_characters:
		distinct_characters.append(c)
if len(distinct_characters) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = str(input())
s = []
for i in range(len(n)):
	if s.count(n[i]) < 1:
		s.append(n[i])
if len(s) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import string
c = input()
idx = [0] * 256
for cr in c:
	idx[string.ascii_lowercase.index(cr)] += 1
num = 0
for ele in idx:
	if ele:
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
l1 = list(string)
l2 = []
for i in l1:
	if i not in l2:
		l2.append(i)
if len(l2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
entrada = input()
nombre = []
for i in entrada:
	nombre.append(i)
contador = collections.Counter(nombre)
if len(contador) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
lst = []
for (i, j) in enumerate(a):
	if a[i] not in lst:
		lst.append(a[i])
l = int(len(lst))
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_names = input()
counter = []
for char in user_names:
	if char not in counter:
		counter.append(char)
if len(counter) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import deque
from math import ceil, sqrt

def ii():
	return int(input())

def si():
	return input()

def mi():
	return map(int, input().split())

def li():
	return list(mi())
abc = 'abcdefghijklmnopqrstuvwxyz'
s = si()
m = {}
for i in range(26):
	m[i] = 0
c = 0
for i in range(len(s)):
	if m[ord(s[i]) - ord('a')] == 0:
		c += 1
		m[ord(s[i]) - ord('a')] = 1
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


text = input()
text_np = ''
for i in text:
	if i not in text_np:
		text_np += i
print('IGNORE HIM!' if len(text_np) % 2 != 0 else 'CHAT WITH HER!')


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input()
	return list(s[:len(s) - 1])

def invr():
	return map(int, input().split())
s = insr()
d = {}
for e in s:
	if e in d.keys():
		continue
	else:
		d[e] = True
if len(d.keys()) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


try:
	s = input()
	n = len(set(list(s)))
	if n % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except:
	pass


str1 = input()
list1 = list(str1)
list2 = list(dict.fromkeys(list1))
n = len(list2)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
a = set()
k = 0
for e in st:
	if not e in a:
		k += 1
		a.add(e)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = input()
ls = []
for n in i:
	if n in ls:
		continue
	ls.append(n)
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
ls = []
for element in a:
	if element not in ls:
		ls.append(element)
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
l = set(username)
l1 = list(l)
if len(l1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
str1 = input()
res = Counter(str1)
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def online():
	slowo = input()
	litery = set()
	for i in slowo:
		litery.add(i)
	if len(litery) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(online())


ascii_letters = 'abcdefghijklmnopqrstuvwxyz'
lis = list(ascii_letters)
string = input()
count = 0
for i in string:
	if i in lis:
		count += 1
		lis.remove(i)
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = set(input())
a = len(n)
if a % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin, stdout, setrecursionlimit
if len(set(input())) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = str(input())
s = ''
for i in username:
	if i not in s:
		s += i
	if len(s) == 26:
		break
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = str(input())
a = len(''.join(set(i))) % 2
if a is 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
wordlist = list(word)
setwordlist = set(wordlist)
if len(setwordlist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = [1 for i in range(26)]
c = 0
s = input()
for l in s:
	if a[ord(l) - 97]:
		c += 1
		a[ord(l) - 97] = 0
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
b = 0
dp = []
for i in s:
	if s.count(i) == 1:
		b += 1
	elif s.count(i) > 1:
		if i not in dp:
			b += 1
			dp.append(i)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
dic = {}
for i in str1:
	if i in dic:
		dic[i] += 1
	else:
		dic[i] = 1
if len(dic) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


userInput = input()
chars = []
for c in userInput:
	if c not in chars:
		chars.append(c)
charsLength = len(chars)
if charsLength % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


present = [False] * 26
s = input()
a = 0
n = 0
for i in s:
	a = ord(i) - 97
	if not present[a]:
		present[a] = True
		n += 1
if n % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def strings(s):
	seen = set()
	for c in s:
		if c not in seen:
			seen.add(c)
	size = len(seen)
	if size % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
s = input()
print(strings(s))


def split(word):
	return [char for char in word]
user_name = str(input(''))
userlist = list(set(split(user_name)))
t = len(userlist)
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
hashMap = {}
count = 0
total = 0
for elem in text:
	try:
		count = hashMap[elem]
		count += 1
		hashMap[elem] = count
	except:
		count = 1
		hashMap[elem] = count
for k in hashMap.keys():
	total += 1
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
li = []
for i in w:
	li.append(i)
li = set(li)
if len(li) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def split(word):
	return [char for char in word]
s = input()
a = split(s)
a.sort()
t = 1
for i in range(len(a) - 1):
	if a[i] != a[i + 1]:
		t += 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = list(set(a))
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
new_name = ''.join(set(name))
a = len(new_name) % 2
if a == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stringinput = input()
lll = list()
for letter in stringinput:
	if letter not in lll:
		lll.append(letter)
if len(lll) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
st = ''
for i in s:
	if i not in st:
		st += i
b = len(st)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
counter = 0
name = list(name)
newname = []
if len(name) >= 1 and len(name) <= 100:
	for i in name:
		if i not in newname:
			newname.append(i)
	counter = len(newname)
	if counter % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


n = input()
n1 = set(n)
t = len(n1)
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ca = str(input())
A = []
for x in ca:
	if not x in A:
		A = A + [x]
if len(A) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def split(word):
	return [char for char in word]
count = 1
username = input()
l = split(username)
l.sort()
count = len(l)
for i in range(len(l) - 1):
	if l[i] == l[i + 1]:
		count = count - 1
remainder = count % 2
if remainder == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
temp = set()
for i in range(len(name)):
	temp.add(name[i:i + 1])
print('CHAT WITH HER!' if len(temp) % 2 == 0 else 'IGNORE HIM!')


a = str(input())
h = []
a = list(a)
for i in range(len(a)):
	if a[i] not in h:
		h.append(a[i])
if len(h) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


palavra = input()
letras = []
for i in palavra:
	if i not in letras:
		letras.append(i)
if len(letras) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
inp = stdin.readline().strip('\n')
z = set(inp)
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ins = input()
ans = []
for letter in ins:
	if letter not in ans:
		ans.append(letter)
if len(ans) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	name = input()
	chars = set(name)
	if len(chars) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
a = [0] * 26
for i in s:
	a[ord(i) - 97] = 1
if sum(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def f():
	name = input()
	myset = set(name)
	n = len(myset)
	if n % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
f()


s = input()
i = 0
while i < len(s):
	if s.count(s[i]) > 1:
		p = s[i]
		while s.count(p) != 1:
			j = s.find(p)
			s = s[:j] + s[j + 1:]
	else:
		i += 1
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


z = str(input())
arr = []
for i in range(len(z)):
	status = True
	for j in range(len(arr)):
		if z[i] == arr[j]:
			status = False
			break
	if status:
		arr.append(z[i])
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().lower()
s1 = set(s)
if len(s1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


uname = input()
temp = {}
for i in uname:
	if i in temp:
		temp[i] += 1
	else:
		temp[i] = 1
c = 0
for i in temp:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input().lower()
print('IGNORE HIM!') if len(set(name)) % 2 else print('CHAT WITH HER!')


x = list(map(str, input()))
x = list(set(x))
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
s = []
for c in a.lower():
	if not c in s:
		s.append(c)
l = len(s)
print('CHAT WITH HER!' if l % 2 == 0 else 'IGNORE HIM!')


name = input()
dict = {}
answer = 0
for letter in name:
	if letter not in dict:
		dict[letter] = 1
		answer = answer + 1
if answer % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = str(input())
set1 = set([])
for i in range(len(str1)):
	set1.add(str1[i])
length = len(set1)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
n = 0
while True:
	if s == '':
		break
	s = s.replace(s[0], '')
	n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


rock = input()
rock = set(rock)
j = len(rock)
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = list(input())
user_chars = []

def distinct_finder(el):
	if el not in user_chars:
		user_chars.append(el)
for ch in user_name:
	distinct_finder(ch)
if len(user_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = len(s)
if l >= 1 and l <= 100:
	s = set(s)
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


a = input()
b = len(a)
l = []
for i in range(b):
	c = a[i]
	if c in l:
		pass
	else:
		l.append(c)
p = len(l)
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
c = []
for i in a:
	c.append(i)
d = list(set(c))
x = len(d)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = ''.join(set(s))
n = len(l)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
distinct_letters = []
for letter in name:
	if letter not in distinct_letters:
		distinct_letters.append(letter)
if len(distinct_letters) % 2 == 1:
	print('IGNORE HIM!', end='')
else:
	print('CHAT WITH HER!', end='')


s1 = input()
set1 = {'a'}
set1.discard('a')
for i in range(len(s1)):
	set1.add(s1[i])
temp = len(set1) % 2
if temp == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = ''
for i in x:
	if i in y:
		continue
	else:
		y += i
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name.split()
letters = set(name)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i_chars = set(input())
AMOUNT_CHARS = len(i_chars)
if AMOUNT_CHARS % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
s = set()
for char in string:
	s.add(char)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	s = input()
	dic = {}
	for i in range(len(s)):
		if s[i] in dic:
			dic[s[i]] += 1
		else:
			dic[s[i]] = 1
	if len(dic) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


name = input()
A = set(name)
if len(A) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = input()
real = ''
for word in user:
	if word not in real:
		real = real + word
size = len(real)
if size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string_input = input()
letters = {}
for x in string_input:
	letters[x] = 1
if len(letters.values()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
s = ''
for i in x:
	if i not in s and i != ' ':
		s += i
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
lines = sys.stdin.readlines()[0]
abu = lines.strip()
mohamad = set(abu)
if len(mohamad) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = list(input())
num = 0
a = string.count('a')
if a > 0:
	num += 1
b = string.count('b')
if b > 0:
	num += 1
c = string.count('c')
if c > 0:
	num += 1
d = string.count('d')
if d > 0:
	num += 1
e = string.count('e')
if e > 0:
	num += 1
f = string.count('f')
if f > 0:
	num += 1
g = string.count('g')
if g > 0:
	num += 1
h = string.count('h')
if h > 0:
	num += 1
i = string.count('i')
if i > 0:
	num += 1
j = string.count('j')
if j > 0:
	num += 1
k = string.count('k')
if k > 0:
	num += 1
l = string.count('l')
if l > 0:
	num += 1
m = string.count('m')
if m > 0:
	num += 1
n = string.count('n')
if n > 0:
	num += 1
o = string.count('o')
if o > 0:
	num += 1
p = string.count('p')
if p > 0:
	num += 1
q = string.count('q')
if q > 0:
	num += 1
r = string.count('r')
if r > 0:
	num += 1
s = string.count('s')
if s > 0:
	num += 1
t = string.count('t')
if t > 0:
	num += 1
u = string.count('u')
if u > 0:
	num += 1
v = string.count('v')
if v > 0:
	num += 1
w = string.count('w')
if w > 0:
	num += 1
x = string.count('x')
if x > 0:
	num += 1
y = string.count('y')
if y > 0:
	num += 1
z = string.count('z')
if z > 0:
	num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
list1 = []
for x in range(len(name)):
	if name[x] not in list1:
		list1.append(name[x])
if len(list1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ar = []
for a in s:
	if a in ar:
		continue
	elif a not in ar:
		ar.append(a)
if len(ar) % 2 == 0:
	print('CHAT WITH HER!')
elif len(ar) % 2 == 1:
	print('IGNORE HIM!')


s = input()
c = [0] * 26
for ch in s:
	if not c[ord(ch) - 97] == 1:
		c[ord(ch) - 97] = 1
if c.count(1) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
dic = dict()
for i in s:
	dic[i] = 0
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
d = {}
for letter in name:
	d.setdefault(letter, 0)
	d[letter] += 1
n = len(d)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


arr = list(input())
set_arr = set(arr)
if len(set_arr) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = {}
c = 0
for i in s:
	if d.get(i, 0):
		continue
	else:
		c += 1
		d[i] = 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import itertools
i = list(input())
i.sort()
if len([k for (k, g) in itertools.groupby(i)]) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for c in s:
	d[c] = 1
if len(d) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
a = []
for x in s:
	a.append(x)
b = set(a)
a = list(b)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, exit
a = stdin.readline().rstrip()
c = [0] * 26
for char in a:
	c[ord(char) - 97] += 1
t = sum((1 for count in c if count > 0))
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
a = 'a'
arr = []
arr1 = []
res = 0
for i in range(0, 26):
	arr.append(a)
	a = chr(ord(a) + 1)
for i in range(0, 26):
	arr1.append(0)
for i in range(len(str)):
	for j in range(0, 26):
		if str[i] == arr[j]:
			arr1[j] += 1
for i in range(0, 26):
	if arr1[i] > 0:
		res += 1
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
for s in sys.stdin:
	m = [True] * 26
	s = s.replace('\n', '')
	difs = 0
	for c in s:
		if m[ord(c) - ord('a')]:
			m[ord(c) - ord('a')] = False
			difs += 1
	if difs % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


def main():
	name = input()
	name_len = len(name)
	distinct = name_len
	for i in range(name_len):
		same = 0
		for j in range(i + 1, name_len):
			if name[i] == name[j]:
				same += 1
				break
		distinct -= same
	if distinct % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


name = input()
ns = set()
for i in name:
	ns.add(i)
if len(ns) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ar = input()
l = {x for x in ar}
if len(l) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
alist = []
for i in string:
	alist.append(i)
string = set(alist)
if len(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
new_string = ''
c = 0
for i in string:
	if i not in new_string:
		new_string = new_string + i
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import collections
import bisect
import heapq
import time
import random
import itertools
import sys
s = input()
s = set(s)
if len(s) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


detector = len(set(input())) % 2
if detector == 0:
	print('CHAT WITH HER!')
if detector == 1:
	print('IGNORE HIM!')


a = input()
n = dict()
c = list()
for i in a:
	n[i] = 1
c = n.keys()
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
a = 0
for i in range(26):
	if chr(97 + i) in st:
		a += 1
if a % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name_input = input().lower()
sum = list(set(name_input))
if len(sum) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
s = 0
d = {}
for a in x:
	if a in d:
		continue
	d[a] = x.count(a)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ls = []
for ch in s:
	if ch not in ls:
		ls.append(ch)
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = [x for x in input()]
myset = set(n)
le = len(list(myset))
if le % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def isWomen(nickname):
	letters = set()
	for i in nickname:
		letters.add(i)
	return len(letters) % 2 == 0
print('CHAT WITH HER!' if isWomen(input()) else 'IGNORE HIM!')


x = input()
l = [x[0]]
for i in range(len(x)):
	lenl = len(l)
	ans = True
	for j in l:
		if x[i] == j:
			ans = False
	if ans:
		l.append(x[i])
	else:
		pass
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = list(input())
sum = len(l)
for x in range(len(l)):
	charholder = l.pop(0)
	l.append('')
	if charholder in l:
		sum -= 1
	else:
		pass
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
l = []
x = 0
for letter in string:
	if letter not in l:
		l.append(letter)
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input().strip()
s = set()
for i in st:
	s.add(i)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


u = set(map(str, input()))
if len(u) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = []
for i in [chr(x) for x in range(97, 123)]:
	l.append(s.count(i))
k = 0
for i in range(len(l)):
	if int(l[i]) != 0:
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
unic = []
for i in range(len(username)):
	unic.append(username[i])
for i in range(len(username)):
	for k in range(i + 1, len(unic)):
		if username[i] == unic[k]:
			unic[k] = 0
zero = unic.count(0)
for i in range(zero):
	unic.remove(0)
if len(unic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
unique_char = len(set(string))
if unique_char % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print('IGNORE HIM!' if len(set((x for x in input()))) & 1 else 'CHAT WITH HER!')


user_name = input()
set_of_chars = set()
for i in range(len(user_name)):
	set_of_chars.add(user_name[i])
if len(set_of_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


var = input().lower()
var1 = list(var)
var2 = []
for item in var1:
	if item not in var2:
		var2.append(item)
if len(var2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def BoyOrGirl():
	usrname = input()
	cmp = len(set(usrname))
	if cmp % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	return None

def main():
	BoyOrGirl()
main()


q = input()
d = {}
for i in q:
	d[i] = 1
c = len(d)
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
res = sum([1 for i in Counter(input())])
if res % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
s = set()
for a in name:
	s.add(a)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
i = 0
l = []
while i < len(s):
	m = s[i]
	if m in l:
		i = i + 1
		continue
	else:
		l.append(s[i])
		i = i + 1
z = len(l)
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
ls = []
count = 0
for i in range(len(name)):
	if name[i] not in ls:
		count += 1
	ls.append(name[i])
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
c = []
for j in range(len(s)):
	if s[j] not in c:
		c.append(s[j])
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
s = 0
dict = {}
for i in a:
	if i not in dict.keys():
		dict[i] = 1
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
b = []
for i in t:
	if i not in b:
		b.append(i)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
a = list(set(a))
ff = []
for i in range(len(a)):
	ff.append(1)
if sum(ff) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
seen = []
for i in range(len(name)):
	letter = name[i]
	if letter in seen:
		pass
	else:
		seen.append(letter)
count = len(seen)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
non = str[0]
for i in str:
	if i in non:
		pass
	else:
		non = non + i
if len(non) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
x = list(n)
blank = []
for element in x:
	if element not in blank:
		blank.append(element)
a = len(blank)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
count = {}
for i in range(len(username)):
	count.setdefault(username[i], 1)
if len(count.keys()) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input())
(count, freq) = (0, 26 * [0])
for j in range(len(name)):
	n = ord(name[j]) - 97
	if freq[n] == 0:
		count += 1
		freq[n] = 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


lst = input().lower()
data = list('abcdefghijklmnopqrstuvwxyz')
dat = []
for i in lst:
	if i in data and i not in dat:
		dat.append(i)
if len(dat) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = len(s)
for i in range(26):
	if s.count(chr(97 + i)) > 1:
		l = l - s.count(chr(97 + i)) + 1
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


t = input()
s = set()
for i in t:
	s.add(i)
count = len(s)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout, setrecursionlimit
from math import gcd, ceil, sqrt
from collections import Counter, deque
from bisect import bisect_left, bisect_right
ii1 = lambda : int(stdin.readline().strip())
is1 = lambda : stdin.readline().strip()
iia = lambda : list(map(int, stdin.readline().strip().split()))
isa = lambda : stdin.readline().strip().split()
setrecursionlimit(100000)
mod = 1000000007
s = len(set(list(is1())))
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
d = {}
for i in range(len(a)):
	d[a[i]] = d.get(a[i], 0) + 1
l = len(d)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


v2 = str(input())
list_a = []
for i in v2:
	x = 0
	for j in list_a:
		if i == j:
			x = x + 1
	if x == 0:
		list_a.append(i)
if len(list_a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input().lower()
c = set(x)
l = len(c)
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
m = len(''.join(set(x)))
m = int(m)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input()
user_l = set([t for t in user])
if len(user_l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
t = ''.join(set(s))
m = len(t)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


words = input()
words_length = len(words)
lowercase = 'abcdefghijklmnopqrstuvwxyz'
isUsed = [0 for i in range(0, 26)]
counter2 = 0
while counter2 < words_length:
	counter = 25
	while counter >= 0:
		if words[counter2] == lowercase[counter]:
			isUsed[counter] = 1
		counter = counter - 1
	counter2 = counter2 + 1
total = 0
for i in range(0, 26):
	total = total + isUsed[i]
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
x = [z for z in x]
x = list(set(x))
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
alpha = [False] * 26
ans = 0
for c in s:
	if not alpha[ord(c) - 97]:
		ans += 1
		alpha[ord(c) - 97] = True
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def is_even(n: int) -> bool:
	return n % 2 == 0

def main():
	username = input()
	num_distinct_chars = len(set(username))
	if is_even(num_distinct_chars):
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


user_name = input()
distinct_letters = dict()
for letter in user_name:
	distinct_letters[letter] = distinct_letters.get(letter, 0) + 1
num_dist_letters = len(distinct_letters.keys())
if num_dist_letters % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
n = len(a)
c = 0
for i in range(n):
	b = a.count(a[i])
	if b != 1:
		a = ' ' + a[:i] + a[i + 1:]
		c = c + 1
n = n - c
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
userName = list(string)
counter = 0

def isTheCharacterDistinct(x):
	guessFlag = 0
	letter = userName[x]
	for j in range(x):
		currentLetter = userName[j]
		if currentLetter != letter:
			continue
		else:
			guessFlag = 1
			return False
	if guessFlag == 0:
		return True
for i in range(len(userName)):
	guessFlagTwo = isTheCharacterDistinct(counter)
	if guessFlagTwo == True:
		counter = counter + 1
		continue
	else:
		userName.pop(counter)
		continue
finalLength = len(userName)
if finalLength % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
s = input()
count = 0
d = dict(Counter(s))
for i in d.items():
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
existed = ''
count = 0
for i in s:
	if i not in existed:
		count += 1
		existed += i
print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


line = input()
name = [line[0]]
for i in range(1, len(line)):
	if name.count(line[i]) == 0:
		name.append(line[i])
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
s = input()
flag = False
b = []
c = []
n = 0
r = 0
for i in range(len(s)):
	for n in range(len(s)):
		if ord(s[i]) == ord(s[n]) and i != n and (s[i] != b[:]):
			flag = True
			r += 1
			c.append(s[i])
	if flag == False:
		b.append(s[i])
	flag = False
r = len(b) + len(list(set(c)))
if r % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l = list()
count = 0
for i in range(len(x)):
	l.append(x[i])
l = sorted(l)
for j in range(1, len(l)):
	if l[j - 1] == l[j]:
		count += 1
if (len(l) - count) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
new = set(name)
cha = len(new)
if cha % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = str(input())
saida = ''
for letra in string:
	if letra not in saida:
		saida += letra
if len(saida) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


li = []
In = input()
for i in In:
	li.append(i)
li.sort()
m = len(li)
n = 0
for i in range(m - 1):
	if li[i] == li[i + 1]:
		n += 1
if (m - n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
tool = len(name)
name2 = ''
i = 0
c = 0
for word in name:
	for word2 in name2:
		if word == word2:
			i += 1
	if i == 0:
		c += 1
		name2 += word
	i = 0
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
l = set(list(x))
l2 = list(l)
if len(l2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
A = set(a)
b = len(A)
if b % 2 == 0:
	print('CHAT WITH HER!')
if b % 2 != 0:
	print('IGNORE HIM!')


name = input()
distinct = ''
for c in name:
	isIn = c in distinct
	if isIn == False:
		distinct += c
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
m = len(set(a))
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
param = ''
for letter in name:
	if letter not in param:
		param += letter
if len(param) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
i = 0
while i < len(s):
	if s.count(s[i]) > 1:
		del s[i]
		i -= 1
	i += 1
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
	exit()
print('IGNORE HIM!')


s = input()
p = set(s)
d = len(p)
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
abc = [chr(ord('a') + i) for i in range(26)]
letterCounter = 0
for i in abc:
	if i in username:
		letterCounter += 1
if letterCounter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


huruf = input()
hasil = []
for i in huruf:
	if i not in hasil:
		hasil += [i]
if len(hasil) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = list(input())
s = set(l)
length = len(s)
if length % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
ar = []
a = 0
for i in range(0, len(s)):
	for j in range(0, len(ar)):
		if s[i] == ar[j]:
			a = a + 1
	if a == 0:
		ar.append(s[i])
	a = 0
if len(ar) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
li = []
counter = 0
for k in s:
	if k not in li:
		li.append(k)
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
b = list(set(s))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = sorted(input())
rep = 0
for i in range(len(s) - 1):
	if s[i] == s[i + 1]:
		rep += 1
dist = len(s) - rep
if dist % 2 == 0:
	print('CHAT WITH HER!')
	exit()
print('IGNORE HIM!')


username = input()
distinct_string = ''.join(dict.fromkeys(username))
if len(distinct_string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
lettre = []
lettre.append(n[0])
for i in range(len(n)):
	h = 0
	for j in range(len(lettre)):
		if n[i] == lettre[j]:
			h += 1
	if h < 1:
		lettre.append(n[i])
if len(lettre) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
flag = len(name)
balti = []
for n in range(0, len(name)):
	if name[n] in balti:
		continue
	for x in range(n + 1, len(name)):
		if name[n] == name[x]:
			flag = flag - 1
			balti.append(name[x])
		else:
			continue
if flag % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
for i in range(len(name) - 1):
	for j in range(len(name) - 1, i, -1):
		if name[i] == name[j]:
			name.pop(j)
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n = list(n)
f = {}
for i in n:
	if i in f:
		f[i] += 1
	else:
		f[i] = 1
p = f.values()
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


dic = {}
for i in input():
	if i not in dic:
		dic[i] = 0
	dic[i] += 1
if not len(dic) % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
count = 0
l = []
for x in range(0, len(s)):
	l.append(s[x])
for y in range(0, len(l)):
	for z in range(y + 1, len(l)):
		if l[y] == l[z]:
			l[z] = 0
for w in range(0, len(l)):
	if l[w] == 0:
		count += 1
list = len(l) - count
if list % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
chars = []
for n in name:
	if n not in chars:
		chars.append(n)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import defaultdict
s = input()
x = [x for x in s]
x = set(x)
l = len(x)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
a = list(set(n))
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
if len(a) % 2 == 1:
	print('IGNORE HIM!')


a = input()
t = list(a)
l = []
for i in t[0:]:
	c = 0
	for j in l[0:]:
		if i == j:
			c = 1
			break
	if c == 0:
		l.append(i)
ch = len(l)
if ch % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(set(list(input())))
c = 0
for i in n:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
list(s)
s1 = []
j = 0
i = 0
while i < len(s):
	if s[i] in s1:
		i = i + 1
		continue
	else:
		s1.append(s[i])
		j = j + 1
		i = i + 1
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


f = set()
i = 0
for c in input():
	if c not in f:
		f.add(c)
		i += 1
print('IGNORE HIM!' if i % 2 else 'CHAT WITH HER!')


username = input()
count = 0
analizadas = []
for letra in username:
	if not letra in analizadas:
		count += 1
	analizadas.append(letra)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = 'CHAT WITH HER!'
b = 'IGNORE HIM!'
s = input()
if len(set(s)) % 2:
	print(b)
else:
	print(a)


n = sorted(list(input()))
x = 0
m = len(n)
if m == 1:
	print('IGNORE HIM!')
else:
	for i in range(m):
		if n[i - 1] != n[i]:
			x += 1
	if x % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')


inp = input()
inp = list(inp)
newSet = set(inp)
print('CHAT WITH HER!' if len(newSet) % 2 == 0 else 'IGNORE HIM!')


v1 = list(input())
v2 = []
for i in v1:
	if i in v2:
		continue
	else:
		v2.append(i)
if len(v2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


test = input()
uniques = []
for char in test:
	if char not in uniques:
		uniques.append(char)
if len(uniques) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for e in s:
	d[e] = True
if len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
count = 0
chara = set(n)
if len(chara) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
k = 0
for i in x:
	if x.count(i) != 0:
		x = x.replace(i, '')
		k += 1
print('CHAT WITH HER!' if k % 2 == 0 else 'IGNORE HIM!')


import sys
s = input().strip()
len1 = len(set(s))
if len1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
f = [0] * 26
for i in range(len(s)):
	f[ord(s[i]) - ord('a')] += 1
c = 0
for i in range(26):
	if f[i]:
		c += 1
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s1 = input()
s1 = s1.lower()
s = ''
for i in range(len(s1)):
	if s1[i] not in s:
		s = s + s1[i]
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l = len(x)
p = l
count = 0
for f in range(l - 1):
	c = x[f]
	for i in range(f + 1, l):
		if c == x[i]:
			p = p - 1
			break
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
a = input()
o = 0
for i in list(string.ascii_lowercase):
	if a.find(i) != -1:
		o += 1
if o % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
set = set(n)
output = list(set)
l = len(output)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
if len(name) <= 100:
	check = ''.join(set(name))
	if len(check) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


n = input()
l1 = list(n)
l2 = list(set(l1))
if len(l2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p_mes = 'CHAT WITH HER!'
n_mes = 'IGNORE HIM!'
un = len(set(input().strip()))
print(n_mes if un % 2 else p_mes)


s = input()
(x, freq) = (set(), 0)
for i in s:
	if i not in x:
		freq += 1
		x.add(i)
if freq % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solution(input_string):
	dictionary = {}
	for key in input_string:
		dictionary[key] = dictionary.get(key, 0) + 1
	if len(dictionary) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
input_string = input()
solution(input_string)


x = input()
b = set()
for i in range(len(x)):
	b.add(x[i])
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = list(input())
y = dict.fromkeys(x)
if len(y) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


S = input()
l = set(S)
K = len(l)
if K % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
alth = 'qwertyuiopasdfghjklzxcvbnm'
alth2 = [0] * 26
for i in s:
	alth2[alth.find(i)] = 1
num = 1 - sum(alth2) % 2
print('CHAT WITH HER!' * num + 'IGNORE HIM!' * (1 - num))


(a, s, i, t) = ([0] * 27, str(input()), 0, 0)
while i != len(s):
	if a[ord(s[i]) - 97] == 0:
		t = t + 1
		a[ord(s[i]) - 97] = 1
	i = i + 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
n = 0
a = 0
for i in range(len(s)):
	for o in range(i + 1, len(s)):
		if s[i] == s[o] and s[i] != ' ':
			s[o] = ' '
			n += 1
	n = 0
for i in range(len(s)):
	if s[i] != ' ':
		a += 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = list(input())
l = c = len(user)
while l > 0:
	co = user.count(user[0])
	l -= co
	c = c - (co - 1)
	val = user[0]
	while val in user:
		user.remove(val)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = str(input())
sum = 1
s = []
s.append(m[0])
for i in range(1, len(m)):
	if m[i] not in s:
		s.append(m[i])
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def getLines(num):
	inputLines = []
	for i in range(0, num):
		line = input()
		if line:
			inputLines.append(line)
		else:
			break
	return inputLines

def notZeroPow(num, p):
	return True if num >= 1 and num <= pow(10, p) else False

def countRepeat(value, arr):
	count = 0
	for e in arr:
		if e == value:
			count += 1
	return count
lines = getLines(1)
s = lines[0]
result = 0
used = []
for e in s:
	if not e in used:
		cr = countRepeat(e, s)
		if cr > 1:
			result += cr - 1
			used.append(e)
br = len(s) - result
text = 'CHAT WITH HER!' if br % 2 == 0 else 'IGNORE HIM!'
print(text)


str = list(input())
n = 0
while str:
	if str.count(str[0]) == 1:
		n += 1
		str.remove(str[0])
	elif str.count(str[0]) > 1:
		n += 1
		p = str[0]
		for j in range(str.count(str[0])):
			str.remove(p)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


list1 = list('abcdefghijklmnopqrstuvwxyz')
list2 = list(input())
list3 = list1 + list2
count = 0
for i in list1:
	if list3.count(i) >= 2:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def main():
	inp = sys.stdin.readlines()
	counter = set()
	last_sign = None
	for sign in inp[0]:
		counter.add(sign)
	if (len(counter) - 1) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


name = input()
c = []
count = 0
for i in name:
	if i not in c:
		c.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = set(input())
advice = ''

def getGender(name):
	if len(name) % 2 != 0:
		advice = 'IGNORE HIM!'
	elif len(name) % 2 == 0:
		advice = 'CHAT WITH HER!'
	return advice
out = getGender(n)
print(out)


test_str = input()
distinct_key_hash = set(test_str)
girl_msg = 'CHAT WITH HER!'
boy_msg = 'IGNORE HIM!'
print(girl_msg if len(distinct_key_hash) % 2 == 0 else boy_msg)


import sys
input = sys.stdin.readline
screenname = input()
name_chars = {}
for char in screenname:
	if name_chars.get(char) == None and char.isalpha():
		name_chars[char] = 0
if len(name_chars.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
cnt = 0
for ch in range(97, 97 + 26):
	ch = chr(ch)
	if ch in s:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
x = list()
for i in n:
	if i not in x:
		x.append(i)
	else:
		continue
le = len(x)
if le % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
x = 1
k = [i for i in range(26)]
r = len(a)
k[0] = a[0]
m = 0
for i in range(1, r):
	m = 0
	for j in range(x):
		if a[i] == k[j]:
			m = 1
	if m == 0:
		k[x] = a[i]
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
cnt = [0] * 26
for i in range(len(name)):
	cnt[ord(name[i]) - ord('a')] = 1
ans = sum(cnt)
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


r = input('')
gg = set(r)
fr = len(gg)
if fr % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input()
TMP = []
for _ in range(len(N)):
	if N[_] not in TMP:
		TMP.append(N[_])
print('CHAT WITH HER!' if len(TMP) % 2 == 0 else 'IGNORE HIM!')


n = str(input())
a = 1
s = list(n)
s.sort()
for i in range(len(s) - 1):
	if s[i] != s[i + 1]:
		a += 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
a = 'abcdefghijklmnopqrstuvwxyz'
count = 0
for i in range(len(n)):
	if n[i] in a:
		count += 1
		a = a.replace(n[i], '')
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = [0] * 26
ans = 0
for i in range(len(s)):
	if not arr[ord(s[i]) - 97]:
		arr[ord(s[i]) - 97] = 1
		ans += 1
if not ans % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
l1 = list()
l1.append(l[0])
for i in range(1, len(l)):
	if l[i] not in l1:
		l1.append(l[i])
if len(l1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
sa = []
d = 0
for i in range(len(s)):
	if s[i] not in sa:
		sa.append(s[i])
		d += 1
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
alpha = []
count = 0
for char in s:
	if char not in alpha:
		alpha.append(char)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
my_list = []
for i in s:
	my_list.append(i)
new_list = list(set(my_list))
str1 = ''.join(new_list)
x = len(str1)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
Lname = []
for i in range(len(name)):
	Lname.append(name[i])
if len(set(Lname)) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


while True:
	ls = []
	try:
		ss = input()
		for i in ss:
			if i not in ls:
				ls.append(i)
		num = len(ls)
		if num % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
	except:
		break


w = input()
dis = []
num = 0
for i in range(len(w)):
	if w[i] not in dis:
		num += 1
		dis.append(w[i])
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')
x = 0


a = [0] * 10000
s = input()
for i in range(len(s)):
	a[ord(s[i])] = 1
ans = 0
for x in range(1000):
	if a[x]:
		ans = ans + 1
if ans % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


mystring = input()
tup = []
i = 0
l = len(mystring)
while i < l:
	tup.append(mystring[i])
	i += 1
x = len(set(tup))
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
s = 0
l = len(a)
for i in range(l):
	s = s + 1
	for j in range(i):
		if a[i] == a[j]:
			s = s - 1
			break
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def input():
	return sys.stdin.readline().strip()

def iinput():
	return int(input())

def rinput():
	return map(int, sys.stdin.readline().strip().split())

def get_list():
	return list(map(int, sys.stdin.readline().strip().split()))
n = input()
n = list(n)
n1 = sorted(n)
count = len(n1) - 1
for i in range(len(n) - 1):
	if n1[i] != n1[i + 1]:
		count -= 1
l = len(n1) - count
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
userbool = [0] * 26
for i in range(len(username)):
	userbool[ord(username[i]) - 97] = 1
counter = 0
for i in range(len(userbool)):
	if userbool[i] == 1:
		counter += 1
if counter & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	s = input()
	out = []
	for c in s:
		if c in out:
			pass
		else:
			out.append(c)
	if len(out) & 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


n = input()
ls1 = list(n)
ls2 = list(set(ls1))
if len(ls2) % 2 == 0:
	print('CHAT WITH HER!')
elif len(ls2) % 2 != 0:
	print('IGNORE HIM!')


nickname = input()
count = {}
letterSum = 0
for l in nickname:
	if l in count:
		count[l] += 1
	else:
		count[l] = 1
		letterSum += 1
if letterSum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


tracker = {}
username = input()
for i in username:
	if tracker.get(i) != None:
		tracker[i] += 1
	else:
		tracker[i] = 1
count = 0
for i in tracker:
	count += 1
print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


import string
inp = input()
alll = 0
for a in string.ascii_lowercase:
	if not inp.find(a) == -1:
		alll = alll + 1
if alll % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


w = input('')
k = ''.join(set(w))
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
count = 0
y = []
for i in x:
	if i not in y:
		y.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input(''))
b = set(a)
length = len(b)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


letters = input()
li = []
for l in letters:
	li.append(l)
if len(set(li)) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input().lower()
alphabet = []
for _ in range(26):
	alphabet.append(0)
for i in range(len(s)):
	alphabet[ord(s[i]) - 97] = alphabet[ord(s[i]) - 97] + 1
dif = 0
for i in range(26):
	if alphabet[i] > 0:
		dif = dif + 1
if dif % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
c = 0
t = ''
for i in x:
	if x.count(i) == 1:
		c = c + 1
	elif t.count(i) == 0:
		c = c + 1
		t = t + i
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


login = input()
origin_letters = set(login)
she = 'CHAT WITH HER!'
he = 'IGNORE HIM!'
if len(origin_letters) % 2 == 0:
	print(she)
else:
	print(he)


a = str(input())
final_list = []
for num in a:
	if num not in final_list:
		final_list.append(num)
if len(final_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
x = []
y = {}
ans = ''
for i in range(len(a)):
	x.append(a[i])
y = set(x)
if len(y) % 2 != 0:
	ans = 'IGNORE HIM!'
else:
	ans = 'CHAT WITH HER!'
print(ans)


characters = list(input())
k = 0
for i in range(97, 123):
	cha = chr(i)
	if cha in characters:
		k += 1
if k % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
t = ''
for i in s:
	if i in t:
		pass
	else:
		t += i
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def who(name):
	distinct_letters = duplicates_remove(name)
	if len(distinct_letters) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'

def duplicates_remove(name):
	list_name = list(name)
	list_name.sort()
	new_name = ''.join(list_name)
	distinct = ''
	for i in new_name:
		if not i in distinct:
			distinct += i
	return distinct
inp = input()
print(who(inp))


n = input()
from collections import Counter
t = Counter(n)
if len(t) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
s = set()
s.update(*name)
answers = ['CHAT WITH HER!', 'IGNORE HIM!']
print(answers[len(s) & 1])


n = input()
freq = []
for i in range(len(n)):
	if n[i] not in freq:
		freq.append(n[i])
if len(freq) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ch = input()
l = []
for x in ch:
	l.append(x)
s = set(l)
if len(s) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = sorted(input())
n = 1
for i in range(len(s) - 1):
	if s[i] != s[i + 1]:
		n += 1
print(['CHAT WITH HER!', 'IGNORE HIM!'][n % 2])


name = input()
letterDictionary = {}
for character in name:
	letterDictionary[character] = letterDictionary.get(character, 0) + 1
if len(letterDictionary) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


u = str(input())
l = len(u)
A = []
for i in range(l):
	Z = str(u[i])
	if not Z in A:
		A.append(Z)
W = len(A)
if W % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
sum = len(x)
a = []
for i in range(len(x) - 1):
	if i in a:
		continue
	for j in range(i + 1, len(x)):
		if x[i] == x[j]:
			sum -= 1
			a.append(j)
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
sett = set()
for i in x:
	sett.add(i)
v = len(sett)
if v % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
r = 0
for x in range(len(s)):
	w = 0
	for j in range(x):
		if s[j] == s[x]:
			w += 1
	if w == 0:
		r += 1
if r % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


y = input()
li = [0] * 26
for x in range(0, len(y)):
	li[ord(y[x]) - 97] += 1
count = 0
for x in range(0, 26):
	if li[x] >= 1:
		count += 1
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def BoyorGirl(s):
	l = len(set(s))
	if l % 2 == 1:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
x = input()
print(BoyorGirl(x))


x = input()
y = list(set(x))
n = len(y)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
c = 0
t = []
for i in s:
	if i not in t:
		t.append(i)
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


my_set = set()
s = input()
for x in s:
	my_set.add(x)
print(('CHAT WITH HER!', 'IGNORE HIM!')[len(my_set) % 2 == 1])


def main():
	name = input()
	name = list(name)
	bob = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
	count = 0
	for x in name:
		l = ord(x) - 97
		bob[l] += 1
		if bob[l] == 1:
			count += 1
	if count % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


s1 = input()
length = len(set(s1))
if length != 2:
	if length % 2 == 1:
		print('IGNORE HIM!')
	if length % 2 == 0:
		print('CHAT WITH HER!')
if length == 2:
	print('CHAT WITH HER!')


boy = 'IGNORE HIM!'
girl = 'CHAT WITH HER!'
s = input()
if len(set(s)) % 2 == 0:
	print(girl)
else:
	print(boy)


s = input()
l = list(s)
c = 0
a = []
for i in l:
	if i not in a:
		a.append(i)
n = len(a)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
v = 'abcdefghijklmnopqrstuvwxyz'
count = 0
for i in v:
	if i in s:
		count += 1
resp = 'CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!'
print(resp)


a = input()
l = []
for letter in a:
	l.append(letter)
b = set(l)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
set1 = set(n)
m = len(set1)
if m % 2 == 0:
	print('CHAT WITH HER!')
if m % 2 == 1:
	print('IGNORE HIM!')


s = input()
arr = {'int': '整数', 'float': '浮点', 'str': '字符串', 'list': '列表', 'tuple': '元组', 'dict': '字典', 'set': '集合'}
cnt = 0
for i in s:
	if i in arr:
		cnt = cnt
	else:
		cnt = cnt + 1
	arr[i] = 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import re
print('IGNORE HIM!' if len(set(re.findall('\\w', input()))) % 2 else 'CHAT WITH HER!')


v = str(input())
k = list(v)
if len(set(k)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
s = sorted(user_name)
num_char = 1
for i in range(1, len(s)):
	if s[i] != s[i - 1]:
		num_char = num_char + 1
if num_char % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(input())
dic = ['']
dic[0] = name[0]
num = 1
for i in name:
	if i not in dic:
		dic.append(i)
		num = num + 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


d = input()
d = list(d)
r = []
cnt = 0
for i in range(len(d)):
	if d[i] not in r:
		r.append(d[i])
if len(r) % 2 == 0 and len(r) > 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
x = [i for i in x]
c = set(x)
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_str = input()
distinct_char = set()
for i in input_str:
	distinct_char.add(i)
count = 0
for _ in range(len(distinct_char)):
	count += 1
print('IGNORE HIM!') if count % 2 != 0 else print('CHAT WITH HER!')


def BoyOrgirl():
	name = set(input().strip())
	a = len(name)
	if a % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
a = BoyOrgirl()
print(a)


S = input()
S1 = set(S)
D = len(S1)
if D % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def checkGender(string):
	frequency = {}
	for character in string:
		if frequency.get(character) is not None:
			frequency[character] += 1
		else:
			frequency[character] = 1
	count = len(frequency)
	return 'CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!'

def main():
	string = input().strip()
	print(checkGender(string))
main()


strg = input()
lst = strg.split()
s = set(strg)
if len(s) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
k = []
c = 1
for i in range(0, len(n)):
	k.append(n[i])
k.sort()
for j in range(0, len(n) - 1):
	if k[j] != k[j + 1]:
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
stones = list(sys.stdin.readline().strip())
stones = list(set(stones))
n = len(stones)
if n % 2:
	sys.stdout.write('IGNORE HIM!\n')
else:
	sys.stdout.write('CHAT WITH HER!\n')


a = str(input())
s = str('')
for i in range(len(a)):
	if s.count(a[i]) == 0:
		s = s + a[i]
k = len(s)
if k % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin, stdout

def get_string():
	return stdin.readline().strip()
s = set(get_string())
if len(s) % 2 != 0:
	stdout.write('IGNORE HIM!')
else:
	stdout.write('CHAT WITH HER!')


l = []
for i in input():
	l.append(i)
l = list(dict.fromkeys(l))
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
b = 0
for char in set(a):
	b += 1
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = s[0]
for i in s:
	if a.find(i) == -1:
		a = a + i
if not len(a) % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin

def main():
	L = []
	x = stdin.readline().strip()
	for i in range(len(x)):
		if x[i] not in L:
			L.append(x[i])
	if len(L) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
l = [d for d in s]
l1 = list(set(l))
if len(l1) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


man = 'IGNORE HIM!'
girl = 'CHAT WITH HER!'
s = input()
letters = set()
for c in s:
	letters.add(c)
count = len(letters)
if count % 2 == 0:
	print(girl)
else:
	print(man)


a = input()
b = ''
for k in range(len(a)):
	if a[k] not in b:
		b = b + a[k]
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
st = []
for i in s:
	if i in st:
		pass
	else:
		st.append(i)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = 97
g = 0
f = 0
for i in range(1, 27):
	for i in n:
		if i == chr(d):
			f = f + 1
	if f > 0:
		g = g + 1
	f = 0
	d = d + 1
if g % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = set(input())
c = 0
for i in s:
	c = c + 1
if c & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input('')
list1 = []
list2 = []
for char in name:
	list1.append(char)
for x in list1:
	if x not in list2:
		list2.append(x)
	a = len(list2)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = set()
for i in s:
	if i not in d:
		d.add(i)
if len(d) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


Str = str(input())
num = len(list(set(list(Str))))
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import re
import sys
from bisect import bisect, bisect_left, insort, insort_left
from collections import Counter, defaultdict, deque
from copy import deepcopy
from decimal import Decimal
from itertools import accumulate, combinations, combinations_with_replacement, groupby, permutations, product
from math import acos, asin, atan, ceil, cos, degrees, factorial, gcd, hypot, log2, pi, radians, sin, sqrt, tan
from operator import itemgetter, mul
from string import ascii_lowercase, ascii_uppercase, digits

def inp():
	return int(input())

def inlist():
	return list(map(int, input().split()))

def instr():
	s = input()
	return list(s[:len(s)])

def invr():
	return map(int, input().split())
s = set(input())
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
name = input().strip()
if len(set(name)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


arr = list(input())
arr.sort()
c = 1
MALE = 'IGNORE HIM!'
FEMALE = 'CHAT WITH HER!'
for i in range(1, len(arr)):
	if arr[i] != arr[i - 1]:
		c += 1
if c % 2 == 0:
	print(FEMALE)
else:
	print(MALE)


nombre = list(input())
letras = []
count = 0
for i in nombre:
	for j in letras:
		if i == j:
			count -= 1
			break
	letras.append(i)
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
x = 0
s = 0
for letter in nick:
	if nick.index(letter) == s:
		x += 1
	s += 1
if 0 == x % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
count = dict()
a = list()
c = 0
for i in s:
	if i not in count:
		count[i] = 1
	else:
		continue
for i in count:
	a.append(int(count[i]))
for i in a:
	c = c + a[i]
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


gend = str(input())
gend = list(gend)

def binarySearch(item, list):
	for i in range(0, len(list)):
		if list[i] == item:
			return True
	return False
newgend = [gend[0]]
gend.pop(0)
while len(gend) > 0:
	if binarySearch(gend[0], newgend) == False:
		newgend.append(gend[0])
		gend.pop(0)
	else:
		gend.pop(0)
if len(newgend) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
alphabet = dict(((a, 0) for a in (c for c in s)))
if len(alphabet) % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
dist = []
for i in str:
	if i in dist:
		continue
	else:
		dist.append(i)
count = 0
for i in dist:
	count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


count = 0
string = input()
Letters = {}
for letter in string:
	if not Letters.get(letter, False):
		count += 1
		Letters[letter] = True
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


usr = input()
dis = []
for i in usr:
	if i not in dis:
		dis.append(i)
if len(dis) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main(name):
	count = 0
	name = sorted(name)
	for i in range(0, len(name) - 1):
		if name[i] != name[i + 1]:
			count += 1
	count += 1
	if count % 2:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
name = input()
print(main(name))


arr = list(map(str, input().strip()))
from collections import Counter
cnt = len(Counter(arr).keys())
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
l = []
for i in s:
	if ord(i) not in l:
		l.append(ord(i))
r = len(l)
if r % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
l = list()
for i in s:
	if i not in l:
		l.append(i)
if len(l) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
a = []
b = []
for i in s:
	a.append(i)
for j in a:
	if j not in b:
		b.append(j)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
s = sorted(s)
ans = 1
k = s[0]
for x in range(1, len(s)):
	if s[x] != k:
		ans += 1
		k = s[x]
if ans % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
n = input()
n = list(n)
ans = Counter(n)
ans = len(ans.keys())
if ans % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


print('CIHGANTO RWEI THHI MH!E R !'[len(set(input())) % 2::2].strip())


s = input()
T = [0] * 255
for i in s:
	T[ord(i)] = 1
ret = 0
for i in range(ord('a'), ord('z') + 1):
	ret += T[i]
if ret % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


b = input()
cockter = 0
kjak = []
for i in range(0, len(b)):
	if b[i] not in kjak:
		kjak.append(b[i])
		cockter += 1
if cockter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


3

def readln():
	return tuple(map(int, input().split()))
print('CHAT WITH HER!' if len(set(list(input()))) % 2 == 0 else 'IGNORE HIM!')


def isWoman(line):
	line.sort()
	cnt = 1
	for i in range(len(line) - 1):
		if line[i] != line[i + 1]:
			cnt += 1
	return 'CHAT WITH HER!' if cnt % 2 == 0 else 'IGNORE HIM!'
print(isWoman(list(input())))


def can_chat(userName):
	distinct = []
	for ch in userName:
		if ch not in distinct:
			distinct.append(ch)
	if len(distinct) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(can_chat(input()))


string = input()
(lib, count) = ([], 0)
for i in range(len(string)):
	if not string[i] in lib:
		count += 1
		lib.append(string[i])
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
i = 0
newSt = []
while i != len(st):
	newSt.append(st[i])
	i = i + 1
newSt.sort()
count = 1
temp = newSt[0]
j = 1
while j != len(newSt):
	if newSt[j] != temp:
		count = count + 1
		temp = newSt[j]
	j = j + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = [0] * 26
for ch in s:
	a[ord(ch) - ord('a')] += 1
cnt = 0
for x in a:
	if x > 0:
		cnt += 1
print(['IGNORE HIM!', 'CHAT WITH HER!'][1 - cnt % 2])


name = input('')
name = list(name)
chars = []
count = 0
for i in name:
	if i in chars:
		pass
	else:
		count += 1
		chars.append(i)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
ls = list(n)
lst = []
for i in ls:
	if i not in lst:
		lst.append(i)
count = len(lst)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


__author__ = 'widoc'
chars = set(input())
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = input()
lst = lst.lower()
lst2 = ''
k = 0
suma = 0
for key in lst:
	if key not in lst2:
		lst2 = lst2 + key
	if len(lst2) % 2 == 0:
		mensaje = 'CHAT WITH HER!'
	else:
		mensaje = 'IGNORE HIM!'
print(mensaje)


x = input()
lower = x.lower()
mylist = list()
final_list = list()
for letter in lower:
	mylist.append(letter)
i = 0
while i < len(mylist):
	if mylist[i] in final_list:
		pass
	else:
		final_list.append(mylist[i])
	i += 1
if len(final_list) % 2 == 0:
	print('CHAT WITH HER!')
elif len(final_list) % 2 != 0:
	print('IGNORE HIM!')


n = input()
final = 0
nLetters = int(len(n))
while len(n) > 0:
	actual = n[0]
	repet = n.count(actual)
	if repet >= 1:
		n = n.replace(actual, '')
		final += 1
final += len(n)
if final % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = []
for x in input():
	if x not in a:
		a.append(x)
if len(a) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


array = []
count = 0
i = 97
string = input()
for i in range(0, len(string)):
	array.append(string[i])
for i in range(97, 123):
	if array.count(chr(i)) > 0:
		count += 1
if count & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = len(set(input()))
print(['CHAT WITH HER!', 'IGNORE HIM!'][s % 2 != 0])


def solveGender(uName):
	return 'CHAT WITH HER!' if len(set([c for c in uName])) % 2 == 0 else 'IGNORE HIM!'
print(solveGender(input()))


T = input('')
a = len(set(T))
strq = ''
for k in T:
	if not k in T:
		strq += k
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
for i in range(len(n) - 1):
	for j in range(i + 1, len(n)):
		if n[i] == n[j]:
			n = n.replace(n[j], '0', 1)
t = 0
for i in range(len(n)):
	if n[i] != '0':
		t = t + 1
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = sorted(input())
c = 1
for i in range(len(st) - 1):
	if st[i] != st[i + 1]:
		c = c + 1
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin

def main():
	a = str(stdin.readline())
	d = 0
	cont = 1
	for i in a:
		boo = True
		for b in range(cont, len(a)):
			if a[b] == i:
				boo = False
		if boo:
			d = d + 1
		cont += 1
	if d % 2 != 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


import sys
s = sys.stdin.read().strip()
print(('CHAT WITH HER!', 'IGNORE HIM!')[len(set(s)) % 2])


name = input()
s = set(name)
l = len(s)
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
c = Counter(input()).values()
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def sw(s):
	gst = {1: 'IGNORE HIM!', 0: 'CHAT WITH HER!'}
	return gst[len(set(s)) % 2]
print(sw(input()))


user = input()
charset = set(user)
if len(charset) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
z = []
for y in x:
	if y not in z:
		z.append(y)
k = len(z)
if k % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from math import *
bitch = input()
a = []
x = 0
for w in bitch:
	a.append(w)
for e in a:
	if a.count(e) == 1:
		x = x + 1
	else:
		x = x + 1 / a.count(e)
y = round(x)
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s1 = input()
count = 0
for i in s1[:]:
	if i == '\x00':
		pass
	elif s1.count(i) == 0:
		pass
	else:
		count = count + 1
		s1 = s1.replace(i, '\x00')
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string_ = str(input())
set_ = set(string_)
length = len(set_)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
name_unique = []
for i in name:
	if i not in name_unique:
		name_unique.append(i)
if len(name_unique) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
b = dict()
for i in a:
	b[i] = b.get(i, 0) + 1
count = 0
for i in b:
	if b[i] == 1:
		count += 1
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
input = sys.stdin.readline

def main():
	s = input().strip()
	l = len(set(list(s)))
	if l % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


n = input()
k = sorted(n)
i = 0
while i < len(k) - 1:
	if k[i] == k[i + 1]:
		k = k[:i + 1] + k[i + 2:]
	else:
		i += 1
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input().strip('\n\r')
s = set((v for v in str1))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = [str(i) for i in input()]
empty_list = []
for z in n:
	if z not in empty_list:
		empty_list.append(z)
if len(empty_list) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


uname = input()
i = int(len(uname))
x = 0
xx = 0
w = ['*']
f = 0
ff = 0
while i > f:
	ii = len(w)
	xx = 0
	ff = 0
	p = 0
	while ii > ff:
		if uname[x] == w[xx]:
			p = 1
		xx = xx + 1
		ff = ff + 1
	if p == 0:
		w.append(uname[x])
	x = x + 1
	f = f + 1
ans = int(len(w)) - 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
broj_slova = 0
for letter in 'qwertzuioplkjhgfdsayxcvbnm':
	if letter in name:
		broj_slova = broj_slova + 1
if broj_slova % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
unic_symbols = []
for i in nick:
	if i not in unic_symbols:
		unic_symbols.append(i)
if len(unic_symbols) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
b = []
for i in range(len(s)):
	done = True
	for j in range(len(b)):
		if b[j] == s[i]:
			done = False
			break
	if done:
		b += [s[i]]
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def dist_chars(string):
	dch = ''
	for char in string:
		if char not in dch:
			dch += char
	return len(dch)
name = input()
if dist_chars(name) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter

def bg():
	s1 = input().strip()
	c1 = Counter(s1)
	l1 = len(c1.keys())
	if l1 % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(bg())


name = input('')
length = len({*name}) % 2
if length != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
distinctCharacters = dict()
for character in name:
	distinctCharacters[character] = True
numDistinctCharacters = len(distinctCharacters.keys())
isFemale = not bool(numDistinctCharacters % 2)
result = 'CHAT WITH HER!' if isFemale else 'IGNORE HIM!'
print(result)


s = input()
c = 0
l = []
if len(s) <= 100:
	for i in s:
		if i not in l:
			l.append(i)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
lis = [i for i in st]
lis1 = []
ch = 0
for i in lis:
	if i not in lis1:
		lis1.append(i)
		ch = ch + 1
if ch % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


z = []
x = 0
for i in input():
	if i not in z:
		z += [i]
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
mx = len(n)
dic = {}
for keys in n:
	dic[keys] = dic.get(keys, 0) + 1
k = 0
for x in dic.keys():
	k += 1
if k % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ch = input()
l = len(list(set([let for let in ch])))
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ls = dict()
for i in range(len(s)):
	ls[s[i]] = ls.get(s[i], 1) + 1
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input('')
str2 = ''
for i in str:
	if i not in str2:
		str2 += i
if len(str2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name = list(name)
b = 1
c = 0
for i in name:
	for m in range(b, len(name)):
		if i == name[m]:
			name[m] = 0
	b = b + 1
for i in range(len(name)):
	if name[i] != 0:
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
arr = list(input())
if len(list(set(arr))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
n = len(s)
dct = {}
for i in range(n):
	if s[i] not in dct.keys():
		dct[s[i]] = 1
	else:
		dct[s[i]] += 1
k = len(dct.keys())
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


arr = input()
a = set(arr)
length = len(a)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stri = list(input())
uniqno = 0
for ix in range(0, len(stri)):
	lix = stri.pop(0)
	if lix not in stri:
		uniqno += 1
if uniqno % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()

def fn(s):
	c = len(set(s))
	if c % 2 == 0:
		return True
	else:
		return False
res = fn(s)
if res == True:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dic = {'a': 0, 'b': 0, 'c': 0, 'd': 0, 'e': 0, 'f': 0, 'g': 0, 'h': 0, 'i': 0, 'j': 0, 'k': 0, 'l': 0, 'm': 0, 'n': 0, 'o': 0, 'p': 0, 'q': 0, 'r': 0, 's': 0, 't': 0, 'u': 0, 'v': 0, 'w': 0, 'x': 0, 'y': 0, 'z': 0}
for i in name:
	dic[i] += 1
num = 0
for d in dic:
	if dic[d] > 0:
		num += 1
if num % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
if s[:] == s.capitalize():
	raise Exception('error')
elif s[:] == s.upper():
	raise Exception('Error')
else:
	ss = set(s)
	if len(ss) % 2 == 0:
		print('CHAT WITH HER!')
	elif len(ss) % 2 != 0:
		print('IGNORE HIM!')
	else:
		raise Exception('error')


str = list(input())
letters = []
n = len(str)
for i in range(0, n):
	if str[i] not in letters:
		letters.append(str[i])
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = [0 for i in range(26)]
s = input()
for i in range(len(s)):
	a[ord(s[i]) - 97] += 1
x = 0
for i in range(26):
	if a[i] > 0:
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s1 = list((char for char in input()))
s2 = list(dict.fromkeys(s1))
n = len(s2)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import math
import bisect

def main():
	s = set(input())
	if len(s) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


s = input()
b = list(s)
b.sort()
c = 1
for i in range(0, len(s) - 1):
	if b[i] != b[i + 1]:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
lst = []
for i in t:
	if i in lst:
		pass
	else:
		lst.append(i)
if len(lst) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s1 = input()
ans = 0
wod = []
for i in s1:
	if i not in wod:
		wod.append(i)
		ans += 1
if ans % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input()
	return list(s[:len(s) - 1])

def invr():
	return map(int, input().split())
s = input()
n = ''.join(set(s))
if len(n) % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	s = input()
	s_ = []
	for i in s:
		if i not in s_:
			s_.append(i)
	l = len(s_)
	if l % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


n = input()
res = list(n)
r = set(res)
if len(r) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = ''
for i in a:
	if i not in b:
		b += i
print(('CHAT WITH HER!', 'IGNORE HIM!')[len(b) % 2])


name = input()
if 0 <= len(name) <= 100:
	if name.islower:
		if len(set(name)) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')


from collections import Counter

def check(user):
	dis = len(Counter(user))
	if dis % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
user = input()
print(check(user))


def main():
	str_a = input()
	x = []
	count = 0
	for i in range(str_a.__len__()):
		if not x.__contains__(str_a[i]):
			x.append(str_a[i])
			count += 1
	if count % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
s1 = set(s)
l1 = list(s1)
l = len(l1)
if l % 2 == 0:
	print('CHAT WITH HER!')
if l % 2 != 0:
	print('IGNORE HIM!')


s = input()
lst = list(s)
m = list(set(lst))
n = len(m)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def identify(string):
	dict = {}
	for c in string:
		if c not in dict:
			dict[c] = 0
	if len(dict) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
string = input()
print(identify(str(string)))


s = input()
freq1 = {}
for i in s:
	if i in freq1:
		freq1[i] += 1
	else:
		freq1[i] = 1
p = len(freq1.keys())
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
unique = ''
cnt = 0
for s in string:
	if s not in unique:
		cnt += 1
		unique += s
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


data = input()
distin = []
for i in data:
	if i not in distin:
		distin.append(i)
if len(distin) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
list = []
s = s.replace(' ', '')
s = s.lower()
for i in s:
	if not i in list:
		list.append(i)
	else:
		continue
a = len(list)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = []
c = 0
s = ''
n = input()
for i in n:
	t.append(i)
t = set(t)
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string

def sheorhe(username):
	s = 0
	a = list(username)
	letras = string.ascii_lowercase
	for i in letras:
		b = a.count(i)
		while b > 1:
			b = b - 1
		s = s + b
	if s % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
a = str(input())
print(sheorhe(a))


s = input()
s2 = list(set(s))
l = len(s2)
if l & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
c = 0
for i in range(len(n)):
	if i == 0:
		c += 1
	elif n[i] not in n[:i]:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
user_char = {}
cnt = 0
for s in user_name:
	if s not in user_char:
		cnt += 1
		user_char[s] = 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
genderset = set(name)
size_set = len(genderset)
if size_set % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout

def insr():
	s = input()
	return list(s[:])

def inlt():
	return list(map(int, input().split()))
inp = insr()
s = set()
for char in inp:
	s.add(char)
cc = 0
for c in s:
	cc += 1
if cc % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
s = 0
group = []
n = len(word)
for i in range(n):
	if word[i] not in group:
		group.append(word[i])
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = []
for i in range(0, 26):
	arr.append(False)
for char in s:
	arr[ord(char) - 97] = True
ans = 0
for i in range(0, 26):
	if arr[i]:
		ans = ans + 1
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
distinct = list(set([s for s in username]))
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve():
	print('IGNORE HIM!' if len(set(input())) & 1 else 'CHAT WITH HER!')

def main():
	t = 1
	for _ in range(t):
		solve()
main()


import re
A = re.findall('\\w', input())
B = [A[0]]
for i in range(1, len(A)):
	if A[i] not in B:
		B.append(A[i])
if len(B) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def split(w):
	return [i for i in w]
a = input()
if len(set(split(a))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input('')
distinctChars = []
for char in username:
	if char not in distinctChars:
		distinctChars.append(char)
if len(distinctChars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
a = 0
for i in range(len(name)):
	b = []
	for j in range(i + 1):
		b.append(name[j])
	if b.count(name[i]) == 1:
		a += 1
else:
	if a % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


x = input()
z = 'abcdefghijklmnopqrstuvwxyz'
c = 0
for i in z:
	for y in x:
		if y == i:
			c = c + 1
			break
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
lst = []
for i in s:
	lst.append(i)
seta = set(lst)
ln = len(seta)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
sp = list(n)
y = set(sp)
if len(y) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import math
from collections import defaultdict
from collections import Counter
import itertools

def solve(s):
	x = Counter(s)
	c = 0
	tot = len(x)
	if tot % 2 != 0:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
s = input()
print(solve(s))


s = input()
p = set(s.lower())
if len(p) % 2 == 0:
	print('CHAT WITH HER!', end='')
else:
	print('IGNORE HIM!', end='')


name = input()
unique = []
for c in name:
	if not c in unique:
		unique.append(c)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = list(input())
i = 0
while i < len(lst):
	if lst.count(lst[i]) > 1:
		del lst[i]
	else:
		i += 1
		pass
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def gender():
	a = input('')
	b = set()
	for i in a:
		b.add(i)
	if len(b) % 2 == 0:
		print('chat with her!'.upper())
	else:
		print('ignore him!'.upper())
gender()


a = []
s = input()
for c in s:
	if not c in a:
		a.append(c)
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(a) % 2])


n = input()
import collections
s = 0
m = 0
x = collections.Counter(n)
for a in n:
	if x[a] == 1:
		s = s + 1
	elif x[a] > 1:
		s = s + 1
		x[a] = 0
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print(['CHAT WITH HER!', 'IGNORE HIM!'][len(set((c for c in input()))) % 2])


x = 'abcdefghijklmnopqrstuvwxyz'
y = input()
co = 0
for i in x:
	if i in y:
		co += 1
if co % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = set()
x.update(input())
if len(x) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
ss = list(s)
sss = list(set(ss))
w = len(sss)
if w % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


if len({*input()}) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
myl = set()
for word in x:
	myl.add(word)
print('CHAT WITH HER!') if len(myl) % 2 == 0 else print('IGNORE HIM!')


s = input()
f = []
for i in range(len(s)):
	if i == 0:
		f.append(s[i])
	elif s[i] not in f:
		f.append(s[i])
isMale = len(f) % 2 == 1
if isMale:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	a = input()
	a = [a[i] for i in range(len(a))]
	a = set(a)
	if len(a) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


print(['IGNORE HIM!', 'CHAT WITH HER!'][len(set(list(input()))) % 2 == 0])


def solve():
	name = input()
	uniq_chars = set(name)
	if len(uniq_chars) % 2 == 0:
		print('CHAT WITH HER!')
		return
	else:
		print('IGNORE HIM!')
		return
solve()


n = input()
v = []
for i in n:
	v.append(i)
z = dict.fromkeys(v)
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
dic = {char: None for char in string}
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
i = 0
count = 0
while len(name) != 0:
	name = name.replace(name[i], '')
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
k = set(x)
k = list(k)
l = len(k)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


chars = 'wjmzbr'
ui = input()
if len(list(set(ui))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s1 = input()
s2 = ''
for i in s1:
	if i not in s2:
		s2 = s2 + i
if len(s2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
mp = {}
for i in name:
	if i not in mp:
		mp[i] = 0
	mp[i] += 1
print('IGNORE HIM!' if len(mp) & 1 else 'CHAT WITH HER!')


name = input()
mydict = {}
count = 0
for i in name:
	if i not in mydict.keys():
		mydict[i] = 1
	else:
		mydict[i] += 1
if len(mydict.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n1 = []
for i in range(len(n)):
	if n[i] not in n1:
		n1.append(n[i])
if len(n1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list()
for i in range(len(s)):
	r = l.count(s[i])
	if r == 0:
		l.append(s[i])
z = len(l)
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
n.sort()
arr = []
count = 1
arr.append(n[0])
for i in range(1, len(n)):
	if n[i] != n[i - 1]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(str(input()))
l = []
for i in range(0, len(username)):
	if username[i] in l:
		pass
	else:
		l.append(username[i])
if len(l) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin
s = stdin.readline().strip()
st = set()
for x in s:
	st.add(x)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


usuario = input()
contador = 0
conferidas = []
for caractere in usuario:
	if not caractere in conferidas:
		contador += 1
	conferidas.append(caractere)
if contador % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


gender = input()
x = list()
for i in range(len(gender)):
	if gender[i] in x:
		continue
	else:
		x.append(gender[i])
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
b = []
for i in range(len(a)):
	if a.count(a[i]) >= 2:
		a[i] = 'fg'
for i in a:
	if i != 'fg':
		b.append(i)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
count1 = 0
d = {}
for i in a:
	keys = d.keys()
	if i in keys:
		d[i] = d[i] + 1
	else:
		d[i] = 1
(sum, sum2) = (0, 0)
for i in d:
	if d[i] > 1:
		sum = sum + d[i]
		sum2 = sum2 + 1
sum = sum - sum2
count = len(a) - sum
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import os
import random
import re
import sys
if len(set(input())) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Name = set(input())
if len(Name) % 2 == 0:
	print('CHAT WITH HER!')
elif len(Name) % 2 != 0:
	print('IGNORE HIM!')


a = input()
b = set()
c = 0
for i in range(len(a)):
	if a[i] not in b:
		b.add(a[i])
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print('IGNORE HIM!') if len(set((p for p in input()))) % 2 else print('CHAT WITH HER!')


name = input()
s = set(name)
ans = 'CHAT WITH HER!' if len(s) % 2 == 0 else 'IGNORE HIM!'
print(ans)


s = str(input())
b = []
w = 0
for i in range(26):
	if s.find(chr(i + 97)) != -1:
		w += 1
if w % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
dictionary = {}
distinct_chars_count = 0
for x in range(0, len(name)):
	if not name[x] in dictionary:
		distinct_chars_count = distinct_chars_count + 1
		dictionary[name[x]] = 1
if distinct_chars_count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = set((c for c in input()))
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
count = 0
fin = 0
for i in range(len(x)):
	if x.count(x[i]) > 1 and i <= x.index(x[i]):
		count += x.count(x[i]) - 1
hasil = len(x) - count
if hasil % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def findgen(s):
	list = [0] * 26
	i = 0
	d = 0
	for i in range(len(s)):
		list[ord(s[i]) - ord('a')] += 1
	i = 0
	for i in range(len(list)):
		if list[i] > 0:
			d += 1
	if d % 2 == 0:
		return 'CHAT WITH HER!'
	if d % 2 == 1:
		return 'IGNORE HIM!'
u = input()
print(findgen(u))


n = input()
count = 0
li = []
li[:0] = n
ans = set(li)
count = len(ans)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	str = input()
	count = 0
	for i in range(len(str)):
		if str.count(str[i], i, len(str)) == 1:
			count += 1
	if count % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
cnt = 0
for i in range(len(s)):
	j = 0
	while j < i and s[i] != s[j]:
		j += 1
	if j == i:
		cnt += 1
if cnt % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
import bisect
import heapq
from math import *
from collections import Counter as counter
from itertools import combinations as comb
from itertools import permutations as permutate
from bisect import bisect_left as bl
from bisect import bisect_right as br
from bisect import bisect
mod = pow(10, 9) + 7

def inp():
	return sys.stdin.readline().strip()

def out(var):
	sys.stdout.write(str(var))

def lis():
	return list(map(int, inp().split()))

def stringlis():
	return list(map(str, inp().split()))

def sep():
	return map(int, inp().split())

def strsep():
	return map(str, inp().split())

def graph(vertex):
	return [[] for i in range(0, vertex + 1)]

def zerolist(n):
	return [0] * n

def nextline():
	out('\n')

def testcase(t):
	for p in range(t):
		solve()

def printlist(a):
	for p in range(0, len(a)):
		out(str(a[p]) + ' ')

def lcm(a, b):
	return a * b // gcd(a, b)

def solve():
	s = list(inp())
	s = set(s)
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
testcase(1)


name = input()
names = []
for i in range(len(name)):
	names.append(name[i])
name1 = {name for name in names}
number = len(name1)
if number % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = []
for i in range(0, 123):
	a.append(0)
b = input()
for i in range(0, len(b)):
	a[ord(b[i])] += 1
con = 0
for i in range(97, 123):
	if a[i] > 0:
		con += 1
if con % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = list(n)
d = {}
for i in l:
	if i in d:
		d[i] += 1
	else:
		d[i] = 1
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
arr = [0] * 256
for i in name:
	if i != ' ':
		arr[ord(i)] += 1
counter = 0
for i in name:
	if arr[ord(i)] > 0:
		arr[ord(i)] = 0
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
count = 0
lst = []
for i in range(len(inp)):
	if not inp[i] in lst:
		lst.append(inp[i])
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


in_string = input()
sum = 0
arr = [''] * 100
place = 0
for i in range(0, len(in_string)):
	x = in_string[i]
	test = in_string[:i] + in_string[i + 1:]
	if x not in test:
		sum += 1
	else:
		if x in arr:
			pass
		else:
			sum += 1
		arr[place] = x
		place += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
l = []
a = 0
for i in str:
	if i in l:
		continue
	else:
		a = a + 1
		l.append(i)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = list(s)
x = []
count = 0
for i in range(0, len(a)):
	if a.count(a[i]) == 1 or a[i] not in x:
		x.append(a[i])
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solution(name: str) -> str:
	userLength = len(str(set(name)))
	if userLength % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
userName = input()
print(solution(userName))


s = input()
a = [0 for i in range(28)]
for ch in s:
	a[ord(ch) - 97] = 1
n = sum(a)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
new_lst = []
for i in range(0, len(username)):
	if username[i] in new_lst:
		continue
	else:
		new_lst.append(username[i])
distinct = len(new_lst)
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
char_frequenct = {}
for char in x:
	if char in char_frequenct:
		pass
	else:
		char_frequenct[char] = 1
l = len(char_frequenct)
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	line = set(list(input().lower()))
	if len(line) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


n = str(input())
z = list()
for i in range(len(n)):
	if n[i] in z:
		pass
	else:
		z.append(n[i])
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dictionary = {}
for word in name:
	if word in dictionary:
		dictionary[word] = dictionary[word] + 1
	else:
		dictionary[word] = 1
if len(dictionary) & 1 != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
alph = 'abcdefghijklmnopqrstuvwxyz'
alphArr = []
for k in alph:
	alphArr.append(k)
for l in sys.stdin:
	l = str(l)
	for d in l:
		for (i, k) in enumerate(alphArr):
			if d == k:
				del alphArr[i]
	break
if len(alphArr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n_list = []
for i in range(0, len(n)):
	n_list.append(n[i])
m = set(n_list)
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
n = len(A)
B = []
while n > 0:
	if A[n - 1] in B:
		n = n - 1
	else:
		B.append(A[n - 1])
		n = n - 1
if len(B) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	palabra = input()
	nombre = set(palabra)
	if len(nombre) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
v = set(s)
v = ''.join(v)
count = 0
for i in range(len(v)):
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import OrderedDict
x = list(input())
x = list(OrderedDict.fromkeys(x))
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import os.path
if os.path.exists('in.txt'):
	sys.stdin = open('in.txt', 'r')
	sys.stdout = open('out.txt', 'w')
s = len(list(set(list(input()))))
if s % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
y = []
for x in word:
	f = 1
	for z in y:
		if x == z:
			f = 0
			break
	if f == 1:
		y.append(x)
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


c = 0
username = str(input())
username_listed = list(username)
for user in set(username_listed):
	c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
t = []
for i in range(len(a)):
	t.append(a[i])
t = list(dict.fromkeys(t))
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def BoyorGirl(name):
	unique = []
	for x in name:
		if x not in unique:
			unique.append(x)
	if len(unique) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
BoyorGirl(input())


s = str(input())
s = len(set(list(s)))
if s & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


linea = input()
letras = dict()
for letra in linea:
	letras[letra] = 1
cantidad = 0
for let in letras:
	cantidad = letras[let] + cantidad
if cantidad % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
(lst, result) = ([], 0)
for i in [_ for _ in word]:
	if i not in lst:
		lst.append(i)
		result += 1
print('CHAT WITH HER!') if result % 2 == 0 else print('IGNORE HIM!')


inp = input()
for i in inp:
	ind = inp.find(i)
	if inp.find(i, ind + 1) != -1:
		inp = inp.replace(i, '', 1)
if len(inp) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input()).lower()
letters = []
for i in range(len(name)):
	if not name[i] in letters:
		letters.append(name[i])
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
c = []
k = len(a)
for i in range(k):
	if a[i] not in c:
		c.append(a[i])
if len(c) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nick = input()
list_nick = set(nick)
if len(list_nick) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_list = []
num = 0
while True:
	if num == 1:
		break
	line = list(input())
	input_list.append(line)
	num += 1
count = 0
letters = []
for letter in line:
	if letter not in letters:
		count += 1
		letters.append(letter)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
z = []
for i in n:
	if i in z:
		None
	else:
		z.append(i)
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = list(map(str, input()))
y = []
for i in x:
	if i not in y:
		y.append(i)
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def Q12(string):
	dic = {}
	for i in string:
		if i not in dic:
			dic[i] = 1
	if len(dic) % 2 != 0:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
line = sys.stdin.readline().strip()
print(Q12(line))


word = input()
no_list = []
for i in word:
	if i in no_list:
		pass
	else:
		no_list.append(i)
length = len(no_list)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


use = list(input())
if len(use) <= 100:
	use.sort()
	s = 1
	i = 0
	while i < len(use) - 1:
		if use[i] != use[i + 1]:
			s += 1
		i += 1
	if s % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


class Solution:

	def solve(self, string):
		freqDict = {}
		for ch in string:
			if ch not in freqDict:
				freqDict[ch] = 1
			else:
				freqDict[ch] += 1
		if len(freqDict) % 2 == 0:
			return 'CHAT WITH HER!'
		else:
			return 'IGNORE HIM!'
sol = Solution()
string = input().strip()
print(sol.solve(string))


name_set = {letter for letter in input()}
if len(name_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


class check:

	def calc(self):
		name = input()
		m = []
		f = 0
		for ch in name:
			m.append(ch)
		m.sort()
		name = ''.join(m)
		for i in name:
			if name.count(i) > 1 and f > 1:
				m.remove(i)
				f -= 1
			elif name.count(i) > 1:
				f = name.count(i)
		if len(m) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
c = check()
c.calc()


str1 = input()
str1 = set(str1)
length = len(str1)
if length % 2 == 0:
	ans = 'CHAT WITH HER!'
else:
	ans = 'IGNORE HIM!'
print(ans)


s = input().strip()
d = {}
for x in s:
	d[x] = 0
ul = len(list(d.keys()))
if ul % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


un = input().strip()
vocab = {}
count = 0
for s in un:
	if s in vocab:
		pass
	else:
		vocab[s] = 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
n = int(len(string))
i = 0
k = 0
result = ''
while n > 0:
	result = string[i] + ' ' + result
	n -= 1
	i += 1
list = [x for x in result.split(' ')]
list.sort()
j = len(list)
p = 0
while j > 1:
	if list[p] != list[p + 1]:
		k += 1
	p += 1
	j -= 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = [name[i] for i in range(len(name))]
s = list(set(s))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
check = 0
c = 0
for y in name:
	if name.count(y) > 1:
		c += 1
		name = name.replace(y, '', name.count(y))
if (len(name) + c) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


print(['CHAT WITH HER!', 'IGNORE HIM!'][len(set(list(input()))) % 2 == 1])


n = [x for x in input()]
new = set(n)
num = len(new)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


identity = input()
letter = []
num = 0
length = len(identity)
for i in range(0, length):
	if identity[i] in letter:
		num += 0
	else:
		letter.append(identity[i])
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
a = set()
for x in t:
	a.add(x)
if len(a) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = 0
flag = 0
list = [1] * len(s)
for i in range(len(s)):
	for j in range(i + 1, len(s)):
		if s[i] == s[j]:
			list[j] = 0
d = sum(list)
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = list(input())
count = 0
mas = []
for i in range(len(user)):
	if user.count(user[i]) >= 2:
		if mas.count(user[i]) <= 0:
			mas.append(user[i])
	else:
		count += 1
count += len(mas)
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
stn = set(s)
x = len(stn)
if x % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import re
s = input()
b = set([i for i in s])
t = len(b) % 2
if t == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def i():
	return input()

def ii():
	return int(input())

def li():
	return input().split()

def mi():
	return list(map(int, input().split()))
s = i()
new = set(s)
if len(new) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


c = str(input())
y = 0
lis = []
for i in range(len(c)):
	for j in range(i, len(c), 1):
		if c[j] == c[i] and c[j] not in lis:
			lis.append(c[j])
if len(lis) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
e = 0
c = []
for i in range(97, 97 + 26):
	e = n.count(chr(i))
	if e != 0:
		e = 1
	c.append(e)
k = c.count(1)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Buscar(N, M):
	for k in range(0, len(M)):
		if N == M[k]:
			return True
	return False
x = input()
y = x
cont = 0
for k in range(0, len(x)):
	y = y[1:]
	if Buscar(x[k], y) == False:
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	line = set(input())
	n = len(line)
	if n % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


n = input()
a = []
for i in range(len(n)):
	a.append(n[i])
b = list(set(a))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nik = input()
mass = []
number = 0

def find(a, b):
	for c in range(len(b)):
		if a == b[c]:
			return True
	return False
for a in range(len(nik)):
	if not find(nik[a], mass):
		mass.append(nik[a])
		number += 1
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
r = set()
for i in s:
	r.add(i)
l = len(r)
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input())
counter = 0

def distinct_characters(string, count):
	if not string:
		return count
	else:
		a = string[0]
		newstring = string.replace(a, '')
		newcount = count + 1
		return distinct_characters(newstring, newcount)
counter = distinct_characters(name, 0)
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
length = len(string)
array = []
for i in range(0, length):
	if string[i] not in array:
		array.append(string[i])
if len(array) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
d = {}
for i in l:
	if i not in d:
		d[i] = 1
	else:
		d[i] += 1
cnt = 0
for i in d:
	cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
mylist = []
for i in range(len(s)):
	mylist.append(s[i])
k = set(mylist)
mylist = list(k)
if len(mylist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


abc = []
for letter in input():
	if letter not in abc:
		abc.append(letter)
if len(abc) == 1 or len(abc) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
distinct = []
cot = 0
for letter in name:
	if letter not in distinct:
		distinct += letter
		cot = cot + 1
if cot % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
s = input()
a = list()
a = s
counter = collections.Counter(a)
x = len(counter)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = []
for i in range(26):
	l.append(0)
s = input()
for i in range(len(s)):
	l[ord(s[i]) - 97] = 1
	ans = 0
for i in range(26):
	ans = ans + l[i]
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = list(str(input('')).strip())
rep = []
count = 0
for i in lst:
	if lst.count(i) > 1:
		if i not in rep:
			count += 1
			rep.append(i)
		pass
	else:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
maping = {}
sum = 0
for character in name:
	if maping.get(character, 0) == 0:
		maping[character] = 1
		sum += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
list1 = []
for i in range(len(w)):
	list1.append(w[i])
list2 = list(set(list1))
if len(list2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
x = len(set((char for char in string.lower() if char.islower())))
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
lis = []
count = 0
for x in s:
	if x not in lis:
		count += 1
		lis.append(x)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


msg = input()
dist = []
for char in msg[:]:
	if char not in dist:
		dist.append(char)
if len(dist) % 2 == 0:
	print('CHAT WITH HER!')
elif len(dist) % 2 != 0:
	print('IGNORE HIM!')


cadena = input()
lista = list(cadena)
lista2 = []
for i in range(len(lista)):
	if lista.count(lista[i]) == 1:
		lista2.append(lista[i])
	elif lista2.count(lista[i]) == 0:
		lista2.append(lista[i])
if len(lista2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = input()
s = 0
l = []
k = ''
for i in range(len(ch)):
	l.append(ch[i])
for i in range(len(l) - 1):
	for j in range(i + 1, len(l)):
		if l[i] == l[j] and l[i] != '*':
			l[j] = '*'
for i in range(len(l)):
	if l[i] != '*':
		s = s + 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
res = ''
for i in w:
	if i not in res:
		res = res + i
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
az = [0] * 26
num = 0
for i in n:
	az[ord(i) - ord('a')] += 1
for i in az:
	if i != 0:
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = list(x)
l = len(x)
i = 0
j = 0
k = 0
count = 0
count2 = 0
for i in range(0, l):
	for j in range(i + 1, l):
		if y[i] == y[j]:
			y[i] = 0
	if y[i] != 0:
		count2 = count2 + 1
if count2 % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str1 = input()
l = len(str1)
newstr = None
for i in range(l):
	if newstr is None:
		newstr = str1[i]
	elif str1[i] not in newstr:
		newstr = newstr + str1[i]
length = len(newstr)
if length % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = list(input())
a = len(st)
b = []
for i in range(0, a):
	if st[i] not in b:
		b.append(st[i])
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


num = set(list(input()))
if len(num) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin
if len(set(stdin.readline().strip())) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
l = [k[i:i + 1] for i in range(0, len(k), 1)]
w = list(set(l))
if len(w) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
s = set()
for i in range(len(str)):
	char = str[i]
	s.add(char)
n = len(s)
if n & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


teks = input().lower()
sama = [0 for i in range(26)]
n = 0
for i in range(len(teks)):
	sama[ord(teks[i]) - 97] += 1
for i in range(len(sama)):
	if sama[i] != 0:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
a = []
s = 0
for i in range(len(n)):
	if n[i] not in a:
		s += 1
		a.append(n[i])
print(['CHAT WITH HER!', 'IGNORE HIM!'][s % 2])


mylist = list(input())
mylist2 = set(mylist)
if len(mylist2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
alpha = [0 for i in range(26)]
for i in range(len(string)):
	if alpha[ord(string[i]) - 97] == 0:
		alpha[ord(string[i]) - 97] = 1
if sum(alpha) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def gender(s):
	s = ''.join(sorted(set(s), key=s.index))
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
gender(input())


str1 = input()
c = 0
str = []
while c < len(str1):
	str.append(str1[c])
	c += 1
c = 0
sum = 0
while c < len(str):
	if str.count(str[c]) > 1:
		str.remove(str[c])
	else:
		sum += 1
		c += 1
if sum % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
letters = []
for i in range(len(s)):
	if s[i] not in letters:
		letters.append(s[i])
	else:
		continue
num = len(letters)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
letters = []
c = 0
for char in a:
	if char not in letters:
		c += 1
		letters.append(char)
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = str(input())
b = set(a)
c = len(b)
counter = 0
while int(counter) < int(c):
	counter = counter + 1
if int(counter) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
count = 0
female = True
count = len(set(name))
if count % 2 == 0:
	female = True
else:
	female = False
if female:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = [a for a in input()]
n.sort()
i = 0
count = 0
k = len(n)
while i <= k - 1:
	count += 1
	if i < k - 1 and n[i] == n[i + 1]:
		while i < k - 1 and n[i] == n[i + 1]:
			i += 1
		i += 1
	else:
		i += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
m = ''
for i in range(len(n)):
	if n[i] not in m:
		m += n[i]
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
count = 0
while len(str) > 0:
	p = str[0:1]
	count = count + 1
	str = str.replace(p, '')
if count % 2 == 0:
	print('CHAT WITH HER!')
if count % 2 == 1:
	print('IGNORE HIM!')


import time
st = set(input())
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
lst = []
for i in range(len(k)):
	lst.append(k[i])
m = set(lst)
g = len(m)
if g % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
name = input()
d = collections.defaultdict(int)
for c in name:
	d[c] += 1
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = [i for i in input()]
A = list(set(A))
output = ['CHAT WITH HER!', 'IGNORE HIM!']
print(output[len(A) % 2])


x = int(len(set(input('').lower())))
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
z = []
t = 0
for i in s:
	if i not in z:
		t += 1
		z.append(i)
if t % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
l = []
n = []
k = 0
for i in range(len(s)):
	l.append(s[i])
	n.append(l.count(l[i]))
for number in n:
	if number == 1:
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
unique_chars = []
for char in user_name:
	if char not in unique_chars:
		unique_chars.append(char)
if len(unique_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
ls = [char for char in name]
ls.sort()
count = 0
l = len(ls)
for i in range(0, l - 1):
	if ls[i] != ls[i + 1]:
		count = count + 1
if count % 2 == 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
p = s.lower()
q = ''
i = 0
if len(p) <= 100:
	for item in p:
		if p.index(item) == i:
			q = q + item
		i = i + 1
	if len(q) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


user = input()
user = dict.fromkeys(user)
if len(user) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dname = []
for i in range(len(name)):
	if name[i] not in dname:
		dname.append(name[i])
if len(dname) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input().lower()
user = sorted(n)
l = len(n)
count = 0
for i in range(0, l):
	if i == l - 1:
		count += 1
	elif user[i] != user[i + 1]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
fin = ''

def check(i):
	for x in fin:
		if i == x:
			return 0
	return 1
for i in st:
	if check(i):
		fin += i
if len(fin) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input())
letters = 'abcdefghijklmnopqrstuvwxyz'
distinct = 0
for i in range(0, len(letters)):
	if letters[i] in name:
		distinct += 1
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
username = sys.stdin.readline().strip()
distinct = 0
characters = []
for character in username:
	if character not in characters:
		distinct += 1
		characters.append(character)
if distinct % 2 == 0:
	sys.stdout.write('CHAT WITH HER!')
else:
	sys.stdout.write('IGNORE HIM!')


a = input()
arr = []
for x in a:
	if x in arr:
		continue
	else:
		arr.append(x)
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
l = list(str)
l = list(dict.fromkeys(l))
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
if len(l) % 2 == 1:
	print('IGNORE HIM!')


s = input()
length = len(s)
set = []
t = 0
for i in range(length):
	if not s[i] in set:
		set.append(s[i])
		t = t + 1
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = list(input())
distinctString = []
for char in string:
	if char not in distinctString:
		distinctString.append(char)
if len(distinctString) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter as c
n = input()
s = c(n)
print('CHAT WITH HER!' if len(s.keys()) % 2 == 0 else 'IGNORE HIM!')


s = input().lower()
assert len(s) < 100
distinct = ''
duplicated = ''
for l in s:
	if l not in distinct:
		distinct += str(l)
	else:
		duplicated += str(l)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


count = 0
grop = ''
grop = list(grop)
stri = input()
stri = list(stri)
for i in list(range(len(stri))):
	if stri[i] not in grop:
		grop.append(stri[i])
if len(grop) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
string = set(string)
length = len(string)
girl = 'CHAT WITH HER!'
boy = 'IGNORE HIM!'
if length % 2 == 0:
	print(girl)
else:
	print(boy)


def Boy_or_girl():
	string = input()
	new_string = ''
	for _ in string:
		if _ not in new_string:
			new_string = new_string + _
	if len(new_string) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
	return
Boy_or_girl()


n = input()
a = 26 * [0]
t = 0
for i in range(len(n)):
	a[ord(n[i]) - ord('a')] = 1
for i in range(26):
	if a[i] != 0:
		t += 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input(''))
distinct = ''
for i in range(len(s)):
	char = s[i]
	if char not in distinct:
		distinct = distinct + char
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
elif len(distinct) % 2 == 1:
	print('IGNORE HIM!')


import sys
import math
import re
import io

def is_male(s):
	my_set = set()
	for c in s:
		my_set.add(c)
	return len(my_set) % 2 == 1

def main():
	s = input()
	if is_male(s):
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


import sys
try:
	sys.stdin = open('inputs.txt', 'r')
	sys.stdout = open('output.txt', 'w')
except:
	pass
finally:
	input = sys.stdin.readline
	print = sys.stdout.write
name = set(input().strip())
if len(name) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = input()
li = list(st)
s = set(li)
li = s
length = len(li)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = input()
ans = ''
a = dict(Counter(s))
for (val, key) in a.items():
	if key > 1:
		key = 1
	ans += val * key
if len(ans) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
main = []
for i in s:
	main.append(i)
main1 = []
count = 0
for i in main:
	if (i in main1) == False:
		main1.append(i)
if len(main1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
l = list(name)
chars = []
for char in l:
	if char in chars:
		continue
	else:
		chars.append(char)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import math
import functools
import itertools
were = []
s = input()
n = len(s)
count_different = n
for i in range(n):
	l = 1
	for j in range(n):
		if s[j] == s[i] and j != i:
			if s[i] in were:
				l = 0
			else:
				were.append(s[i])
			break
	if l == 0:
		count_different -= 1
if count_different % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
output = 'IGNORE HIM!'
dc = len(list(set(n)))
if dc % 2 != 1:
	output = 'CHAT WITH HER!'
print(output)


import math, string, itertools, fractions, heapq, collections, re, array, bisect, sys, copy, functools
sys.setrecursionlimit(10 ** 7)
inf = 10 ** 20
eps = 1.0 / 10 ** 10
mod = 10 ** 9 + 7
dd = [(-1, 0), (0, 1), (1, 0), (0, -1)]
ddn = [(-1, 0), (-1, 1), (0, 1), (1, 1), (1, 0), (1, -1), (0, -1), (-1, -1)]

def LI():
	return list(map(int, sys.stdin.readline().strip().split()))

def LLI():
	return [list(map(int, l.split())) for l in sys.stdin.readlines().strip()]

def LI_():
	return [int(x) - 1 for x in sys.stdin.readline().strip().split()]

def LF():
	return [float(x) for x in sys.stdin.readline().strip().split()]

def LS():
	return sys.stdin.readline().strip().split()

def I():
	return int(sys.stdin.readline().strip())

def F():
	return float(sys.stdin.readline().strip())

def S():
	return sys.stdin.readline().strip()

def pf(s):
	return print(s, flush=True)

def pe(s):
	return print(str(s), file=sys.stderr)

def JA(a, sep):
	return sep.join(map(str, a))

def JAA(a, s, t):
	return s.join((t.join(map(str, b)) for b in a))
from math import factorial, gcd
from random import choice, randint
from sys import stdin, stdout
inp = stdin.readline
out = stdout.write

def main():
	s = len(set(S()))
	if s % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s1 = str(input()).casefold()
list1 = []
x = 0
for alpha in s1:
	if alpha not in list1:
		list1.append(alpha)
x = len(list1)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = set()
for c in s:
	ss.add(c)
if len(ss) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


u = input()
x = []
for i in range(len(u)):
	if u[i] not in x:
		x.append(u[i])
if len(x) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def solution(username):
	seen = set()
	ctr = 0
	for c in username:
		if c not in seen:
			seen.add(c)
			ctr += 1
	if ctr % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
username = input()
print(solution(username))


while 1:
	try:
		n = input()
	except:
		break
	k = {}
	for i in n:
		k[i] = 1
	print('CHAT WITH HER!' if len(k.keys()) % 2 == 0 else 'IGNORE HIM!')


s = list(input())
count = len(s)
dup = []
for i in s:
	if i not in dup:
		dup.append(i)
	else:
		count = count - 1
print('CHAT WITH HER!') if count % 2 == 0 else print('IGNORE HIM!')


string = input()
lngth = len(string)
dstnct = string[0]
i = 1
a = 1
while i <= lngth - 1:
	bl = True
	for j in range(a):
		if dstnct[j] == string[i]:
			bl = False
			break
	if bl:
		dstnct = dstnct + string[i]
		a = a + 1
	i = i + 1
if a % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


b = sorted(list(input()))
count = 1
for i in range(1, len(b)):
	if b[i - 1] != b[i]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


unique_chars = []
nickname = input()
for letter in nickname:
	if letter not in unique_chars:
		unique_chars.append(letter)
if len(unique_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


class Case:

	def __init__(self, word):
		self.username = word

	def solution(self):
		return 'CHAT WITH HER!' if len(set(self.username)) % 2 == 0 else 'IGNORE HIM!'
username = input()
case = Case(username)
print('{}'.format(case.solution()))


s = input()
s1 = s.lower()
s2 = ''
i = 0
if len(s1) <= 100:
	for item in s1:
		if s1.index(item) == i:
			s2 = s2 + item
		i = i + 1
	if len(s2) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


def ts1(a):
	s = []
	p = a.lower()
	for i in p:
		if i not in s:
			s.append(i)
	l = int(len(s))
	r = l % 2
	if r == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
a = input()
ts1(a)


t = str(input())
t = ''.join(set(t))
if 0 <= len(t) <= 100 and len(t) % 2 == 0:
	print('CHAT WITH HER!')
elif 0 <= len(t) <= 100:
	print('IGNORE HIM!')


if sum((1 for i in set(input()))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
letters = []
for letter in username:
	if letters.count(letter) == 0:
		letters.append(letter)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
words = sorted(name)
l = len(words)
c = 0
i = 1
while i < l:
	if words[i] == words[i - 1]:
		c += 1
	i += 1
t = l - c
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = input()
c = []
b = []
k = 0
a = []
for i in range(0, len(l)):
	c.append(l[i])
	b.append(l[i])
for i in range(0, len(c)):
	k = k + 1
	for j in range(k, len(c)):
		if c[i] == c[j]:
			b[j] = '0'
for i in range(0, len(b)):
	if b[i] != '0':
		a.append(b[i])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	s = input()
	sdist = list(set(s))
	l = len(sdist)
	if l % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
k = []
for i in range(len(s)):
	if s[i] in k:
		cunt = 0
	else:
		k.append(s[i])
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = list()
l.append(n[0])
q = 0
for i in range(1, len(n)):
	e = n[i]
	b = False
	for j in l:
		if n[i] == j:
			b = True
	if b == False:
		l.append(e)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
p = set(n)
print('IGNORE HIM!' if len(p) % 2 != 0 else 'CHAT WITH HER!')


import sys
import math
x = 0
inputs = str(input())
count = {}
for character in inputs:
	count.setdefault(character, 0)
	count[character] = count[character] + 1
for k in count.values():
	k = k / k
	x = x + k
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = ''
for i in range(len(a)):
	if b.find(str(a[i])) == -1:
		b += str(a[i])
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
num = 0
for c in user_name:
	i = user_name.count(c)
	user_name = user_name.replace(c, '', i - 1)
if len(user_name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = [x for x in input()]
letter = set(name)
num = len(letter)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input()
N = N.lower()
distinct = {}
s = ''
for i in N:
	if i not in distinct:
		distinct[i] = 1
if len(distinct) % 2 == 0:
	s = 'CHAT WITH HER!'
else:
	s = 'IGNORE HIM!'
print(s)


s = input()
k = list(s)
n = len(s)
q = []
for i in range(0, n):
	c = 0
	for j in range(i + 1, n):
		if k[i] == k[j]:
			c = c + 1
	if c == 0:
		q.append(k[i])
if len(q) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
lst = []
for i in range(len(username)):
	if username[i] in lst:
		continue
	else:
		lst.append(username[i])
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
uni = set()
for c in s:
	uni.add(c)
if len(uni) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
unique_chars = Counter(input())
if len(unique_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
str = input()
counter = Counter(str)
temp = 0
for (k, v) in counter.items():
	temp = temp + 1
if temp % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
a = list(a)
lz = [0] * 128
x = 'IGNORE HIM!'
y = 0
for i in range(len(a)):
	lz[ord(a[i])] = lz[ord(a[i])] + 1
for i in range(len(lz)):
	if lz[i] != 0:
		y = y + 1
if y % 2 == 0:
	x = 'CHAT WITH HER!'
	print(x)
else:
	print(x)


s = input()
l = set([c for c in s])
l = len(l) % 2
print('IGNORE HIM!' if l else 'CHAT WITH HER!')


word = input()
letters = dict()
for i in range(len(word)):
	if word[i] not in letters:
		letters[word[i]] = 1
	else:
		letters[word[i]] += 1
if len(letters.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


chat = input()
people = {}
for pep in chat:
	if pep not in people:
		people[pep] = 1
	else:
		people[pep] += 1
if len(people) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for x in a:
	if (x in b) == False:
		b.append(x)
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
elif c % 2 == 1:
	print('IGNORE HIM!')


q = input()
s = set()
for x in q:
	s.add(x)
a = len(s)
if a / 2 == a // 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
uniq = []
for ch in n:
	if ch in uniq:
		continue
	else:
		uniq.append(ch)
if len(uniq) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mylist = list(input())
mylist = list(dict.fromkeys(mylist))
size = sum((c.isalpha() for c in mylist))
if size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = []
x = input()
for i in x:
	n.append(i)
n.sort()
distinct = 0
for i in range(len(n)):
	try:
		if n[i] != n[i - 1]:
			distinct += 1
	except IndexError:
		pass
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
y = 'CHAT WITH HER!' if len(set(a)) % 2 == 0 else 'IGNORE HIM!'
print(y)


def ans(string):
	count = 0
	hashm = [0] * 26
	for i in string:
		hashm[ord(i) - ord('a')] += 1
	for i in hashm:
		if i > 0:
			count += 1
	if count % 2:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
string = str(input())
print(ans(string))


from collections import Counter
x = input()
r1 = Counter(x)
if len(r1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
ar = [0] * 26
count = 0
for i in st:
	ar[ord(i) - 97] += 1
	if ar[ord(i) - 97] == 1:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
freq = [0] * 26
for ch in string:
	freq[ord(ch) - ord('a')] += 1
cnt = 0
for itm in freq:
	if itm:
		cnt += 1
if cnt % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
s = set()
c = 0
for i in str:
	if i in s:
		continue
	s.add(i)
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = input()
c = 1
for i in range(1, len(ch)):
	b = True
	for j in range(i):
		if ch[i] == ch[j]:
			b = False
	if b == True:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
this_set = set({})
for x in name:
	this_set.add(x)
if len(this_set) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = str(input())
l = [i for i in n]
set_l = set(l)
count_set = len(set_l)
if count_set % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = {}
for key in s:
	d[key] = d.get(key, 0) + 1
if len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
symbols = set()
for el in string:
	symbols.add(el)
if len(symbols) % 2 == 1:
	print('IGNORE HIM!')
elif len(symbols) % 2 == 0:
	print('CHAT WITH HER!')


username = input()
unique = {}
for i in username:
	if i in unique.keys():
		continue
	else:
		unique[i] = 0
length = len(unique)
if length % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alphabet = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
x = str(input())
val = 0
for k in range(len(x)):
	for l in range(26):
		try:
			if alphabet[l] in x:
				val += 1
				alphabet.remove(alphabet[l])
		except IndexError:
			pass
if val % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
inp = sys.stdin
s = inp.readline()
cnt = 0
for i in range(len(s) - 1):
	if s[i] not in s[i + 1:]:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def _236A(word):
	return 'CHAT WITH HER!' if len(list(set(word))) % 2 == 0 else 'IGNORE HIM!'
print(_236A(input()))


t = input()
set1 = {1}
set1.clear()
for i in range(len(t)):
	set1.add(t[i])
if len(set1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nom = input()
ens = set(nom)
if len(ens) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = []
for i in range(len(s)):
	l.append(s[i])
l = set(l)
if len(l) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
l = len(username)
chara = []
for i in range(l):
	if username[i] not in chara:
		chara.append(username[i])
n = len(chara)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
i = 0
n = len(name)
lst = []
while i < n:
	lst.append(name[i])
	i = i + 1
lst = set(lst)
n = len(''.join(lst)) % 2
if n == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
username = list(input())
char = [0] * 26
count = 0
for i in username:
	char[ord(i) - 97] += 1
for i in char:
	if i != 0:
		count += 1
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
input = sys.stdin.readline
temp = [0] * 26
name = input()
length = 0
for i in range(0, len(name) - 1):
	temp[ord(name[i]) - 97] += 1
for i in range(0, 26):
	if temp[i] > 0:
		length += 1
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
alpha = [0 for _ in range(26)]
for i in s:
	alpha[ord(i) - ord('a')] = 1
print('IGNORE HIM!') if alpha.count(1) % 2 else print('CHAT WITH HER!')


string = input()
alpa = 'abcdefghijklmnopqrstuvwxyz'
for i in string:
	alpa = alpa.replace(i, '')
if len(alpa) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def reveal_gender(avatar_name):
	distinct_char_list = []
	for char in avatar_name:
		if char not in distinct_char_list:
			distinct_char_list.append(char)
	num_distinct_chars = len(distinct_char_list)
	if num_distinct_chars % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
user_name = input()
reveal_gender(user_name)


string = str(input())
temp = {}
for i in string:
	temp[i] = 1
if len(temp) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
m = sorted(x)
count = 0
for i in range(len(x) - 1):
	if m[i] != m[i + 1]:
		count += 1
z = count + 1
if z % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = list(input())
distinct = []
for i in range(len(user)):
	if user[i] not in distinct:
		distinct.append(user[i])
length = len(distinct)
if length % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
myname = []
for i in range(len(name)):
	myname += name[i]
myname = list(dict.fromkeys(myname))
if len(myname) % 2 == 0:
	print('CHAT WITH HER!')
elif len(myname) % 2 != 0:
	print('IGNORE HIM!')


s1 = input()
dic = {}
for i in range(len(s1)):
	dic[s1[i]] = 0
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


names = list(input())
character = []
for name in names:
	character.append(ord(name))
j = 0
for i in range(1, 200):
	if character.count(i) != 0:
		j += 1
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
characters = []
for character in username:
	if character not in characters:
		characters.append(character)
print('CHAT WITH HER!' if len(characters) % 2 == 0 else 'IGNORE HIM!')


phrase = input().lower()
l = len(set(phrase))
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


d = input()
z = []
for i in d:
	z.append(i)
g = set(z)
if len(g) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
vis = [False] * 26
cnt = 0
for x in user_name:
	if vis[ord(x) - ord('a')] == False:
		cnt += 1
		vis[ord(x) - ord('a')] = True
print(['CHAT WITH HER!', 'IGNORE HIM!'][cnt % 2])


s = list(input())
cross = []
for i in range(len(s)):
	if s[i] not in cross:
		cross.append(s[i])
	else:
		pass
if len(cross) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = list(input())
str.sort()
ans = 1
for i in range(len(str) - 1):
	if str[i] == str[i + 1]:
		continue
	else:
		ans += 1
print('CHAT WITH HER!') if ans % 2 == 0 else print('IGNORE HIM!')


x = input()
count = 0
alpha = []
for i in x:
	if i in alpha:
		continue
	else:
		count += 1
		alpha.append(i)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	a = input()
	b = set(a)
	if len(b) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except:
	pass


user = input().lower()
final_list = []
for i in user:
	if i not in final_list:
		final_list.append(i)
if len(final_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
splitted = [str(i) for i in username]
data = []
distinctCount = 0
for i in range(len(splitted)):
	if splitted[0] in data:
		splitted.remove(splitted[0])
	else:
		data.append(splitted[0])
		splitted.remove(splitted[0])
		distinctCount += 1
if distinctCount % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def fun():
	word = input()
	s = word.lower()
	dis = ''.join(set(s))
	length = len(dis)
	ans = ''
	if length % 2 == 0 and length <= 100:
		ans = 'CHAT WITH HER!'
	else:
		ans = 'IGNORE HIM!'
	print(ans)
fun()


username = input()
elements = set()
for i in range(0, len(username)):
	elements.add(username[i])
length = len(elements)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def cf_236a():
	if len(set(input())) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
cf_236a()


meno = input()
pismena = set(meno)
if len(pismena) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


userName = input()
uniqueCharacters = set([letter for letter in userName])
if len(uniqueCharacters) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
h = ' '
for i in s:
	if i not in h:
		h += i
l = len(h)
if l % 2 == 1:
	print('CHAT WITH HER!')
elif l % 2 == 0:
	print('IGNORE HIM!')


a = input()
i = 0
b = []
sum = 0
while i < len(a):
	if b.count(a[i]) == 0:
		sum += 1
		b.append(a[i])
	i += 1
if sum % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


inn = str(input())
s = set()
lenn = len(inn)
for i in range(0, lenn, 1):
	s.add(inn[i])
count = len(s)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
print('CHAT WITH HER!' if len(dict.fromkeys(a).keys()) % 2 == 0 else 'IGNORE HIM!')


string = input()
d = {}
for w in string:
	d[w] = d.get(w, 0) + 1
p = len(d)
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def printIsBoyOrGirl(name):
	CHAR_NUM = 26
	alphaberts = [0] * CHAR_NUM
	for charName in name:
		index = ord(charName) - ord('a')
		if index < 0 or index >= CHAR_NUM:
			return
		alphaberts[index] += 1
	numDistinct = 0
	for i in range(CHAR_NUM):
		if alphaberts[i] > 0:
			numDistinct += 1
	if numDistinct % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
name = input()
printIsBoyOrGirl(name)


def resolve(string):
	dict_c = {}
	for char in string:
		dict_c[char] = None
	dif_char_c = len(list(dict_c.keys()))
	if dif_char_c % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
string = input()
print(resolve(string))


s = str(input())
si = []
for i in range(len(s)):
	if s[i] not in si:
		si.append(s[i])
if len(si) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


if len(set([c for c in input()])) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from __future__ import division, print_function
from fractions import Fraction
import sys
import os
from io import BytesIO, IOBase
from itertools import *
import bisect
from heapq import *
from math import *
from copy import *
from collections import deque
from collections import Counter as counter
from itertools import combinations as comb
from itertools import permutations as permutate
from bisect import bisect_left as bl
from bisect import bisect_right as br
from bisect import bisect
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')

def print(*args, **kwargs):
	(sep, file) = (kwargs.pop('sep', ' '), kwargs.pop('file', sys.stdout))
	at_start = True
	for x in args:
		if not at_start:
			file.write(sep)
		file.write(str(x))
		at_start = False
	file.write(kwargs.pop('end', '\n'))
	if kwargs.pop('flush', False):
		file.flush()
if sys.version_info[0] < 3:
	(sys.stdin, sys.stdout) = (FastIO(sys.stdin), FastIO(sys.stdout))
else:
	(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
from types import GeneratorType

def iterative(f, stack=[]):

	def wrapped_func(*args, **kwargs):
		if stack:
			return f(*args, **kwargs)
		to = f(*args, **kwargs)
		while True:
			if type(to) is GeneratorType:
				stack.append(to)
				to = next(to)
				continue
			stack.pop()
			if not stack:
				break
			to = stack[-1].send(to)
		return to
	return wrapped_func
mod = 1000000007

def inp():
	return sys.stdin.readline().rstrip('\r\n')

def out(var):
	sys.stdout.write(str(var))

def lis():
	return list(map(int, inp().split()))

def stringlis():
	return list(map(str, inp().split()))

def sep():
	return map(int, inp().split())

def strsep():
	return map(str, inp().split())

def zerolist(n):
	return [0] * n

def nextline():
	out('\n')

def testcase(t):
	for p in range(t):
		solve()

def printlist(a):
	for p in range(0, len(a)):
		out(str(a[p]) + ' ')

def solve():
	s = set(sorted(inp()))
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
solve()


k = input()
l = [i for i in k]
m = set(l)
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = len(set((c for c in input().strip() if c != ' ')))
print('CHAT WITH HER!' if l % 2 == 0 else 'IGNORE HIM!')


name = input()
checkList = []
checkList.append(name[0])
for pos in name:
	if checkList.count(pos) == 0:
		checkList.append(pos)
if len(checkList) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
import collections
j = 0
m = 0
x = collections.Counter(n)
for letter in n:
	if x[letter] == 1:
		j = j + 1
	elif x[letter] > 1:
		j = j + 1
		x[letter] = 0
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


res = ''
content = input()
content = ''.join(set(content))
result = len(content)
if int(result) % 2 == 0:
	res = 'CHAT WITH HER!'
else:
	res = 'IGNORE HIM!'
print(res)


Line = input()
n = len(Line)
k = 0
A = []
for i in range(n):
	if Line[i] not in A:
		A.append(Line[i])
	else:
		continue
m = len(A)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = []
for i in n:
	l.append(i)
d = set(l)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
length = len(name)
distinct_characters = list()
count = 0
for i in range(0, length):
	count = 0
	for j in range(length - 1, i, -1):
		if name[i] == name[j]:
			count += 1
	if count == 0:
		distinct_characters.append(name[i])
if len(distinct_characters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
user_name2 = []
for i in range(len(user_name)):
	user_name2.append(user_name[i])
distinct_char = []
for i in user_name2:
	if i not in distinct_char:
		distinct_char.append(i)
if len(distinct_char) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
arr = []
count = 0
for i in range(0, len(a)):
	if a[i] in arr:
		continue
	else:
		arr.append(a[i])
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
i = 0
lst = []
while i < len(a):
	if a[i] not in lst:
		lst.append(a[i])
	i += 1
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


for _ in range(1):
	x = set(list(input()))
	if len(x) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


word = input()
list1 = []
for i in word:
	if list1.count(i) == 0:
		list1.append(i)
num = list1.__len__()
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input().lower()
lis = list(())
count = 0
for i in x:
	if lis.count(i) > 0:
		continue
	lis.append(i)
for i in lis:
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
num = 0
for i in range(len(username)):
	for a in range(0, i):
		if username[i] == username[a]:
			num -= 1
			break
	num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solution():
	s = input()
	d = {}
	for x in s:
		d[x] = d.get(x, 0) + 1
	if len(d.values()) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
solution()


a = input()
dict1 = {}
for i in range(len(a)):
	if a[i] in dict1:
		continue
	else:
		dict1[a[i]] = 1
final = len(dict1)
if final % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
res = 'IGNORE HIM!' if len(set(s)) % 2 else 'CHAT WITH HER!'
print(res)


def String_to_Set(String):
	set1 = set()
	for i in String:
		set1.add(i)
	return set1

def main_approach(set):
	a = len(set)
	if a % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
a = input()
set2 = String_to_Set(a)
main_approach(set2)


h = list(input())
new = []
for i in range(len(h)):
	if h[i] in new:
		continue
	elif h[i] not in new:
		new.append(h[i])
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_or_girl(name):
	num = len(name)
	if num > 0:
		list1 = []
		for i in name:
			if i not in list1:
				list1.append(i)
		n = list1.__len__()
		if n % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
	else:
		print('Please enter a name.')
name = input('')
boy_or_girl(name)


from collections import defaultdict
text_dict = defaultdict(int)
text = input()
cnt = 0
for x in range(len(text)):
	temp = text_dict.get(text[x])
	if temp != 1:
		cnt += 1
		text_dict[text[x]] = 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
d = dict.fromkeys(string.ascii_lowercase, 0)
str = input()
counter = 0
for i in str:
	d[i] = d[i] + 1
for i in d.keys():
	if d[i] >= 1:
		counter = counter + 1
if counter % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def gender_x(n):
	x = len(n)
	s = 0
	for i in range(0, x):
		cnt_same = 0
		for j in range(i + 1, x):
			if n[i] == n[j]:
				cnt_same += 1
		if cnt_same == 0:
			s += 1
	if s % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
n = input('')
gender_x(n)


x = list(input())
y = []
for z in range(0, 123):
	y.append(0)
counter = 0
for i in x:
	if y[ord(i)] == 0:
		counter += 1
		y[ord(i)] = 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
ls = []
for c in x:
	if not c in ls:
		ls.append(c)
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def girlOrBoy(name):
	count = len(set(name))
	if count % 2 != 0:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
name = input()
print(girlOrBoy(name))


n = input()
k = 0
A = [0] * 26
for i in n:
	A[ord(i) - 97] += 1
for j in A:
	if j >= 1:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
l = [0] * 26
for ch in str:
	if l[ord(ch) - 97] == 0:
		l[ord(ch) - 97] += 1
if sum(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def uniqueChars(st):
	char_set = [False] * 26
	count = 0
	for i in range(0, len(st)):
		val = ord(st[i]) - ord('a')
		if not char_set[val]:
			char_set[val] = True
			count += 1
	return count
str1 = input()
if uniqueChars(str1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
count = 0
name = input()
s = [name[i] for i in range(len(name))]
for i in range(len(s)):
	if i == len(s):
		sys.exit()
	else:
		p = s[i]
		if p == 0:
			continue
		count += 1
		for j in range(len(s)):
			if s[j] == p:
				s[j] = 0
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


characters = []
prompt = input()
for i in prompt:
	if not i in characters:
		characters.append(i)
if len(characters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name_list = [name[i] for i in range(len(name))]
name_set = set(name_list)
if len(name_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve():
	l = input()
	chlist = []
	for ch in l:
		if not ch in chlist:
			chlist.append(ch)
	if len(chlist) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
solve()


chars = input()
list_of_unique_chars = []
unique_chars = set(chars)
for char in unique_chars:
	list_of_unique_chars.append(char)
string = ''
for element in list_of_unique_chars:
	string += element
if len(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
s = set()
l = list(a)
s.update(l)
if len(s) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
rep = 0
for x in username:
	if username.count(x) > 1:
		username = username.replace(x, '')
		rep += 1
sum = len(username) + rep
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


h = input()
ouns = []
for i in range(len(h)):
	ouns += h[i]
ouns += ['3']
for j in range(len(ouns)):
	if j > 0:
		u = j - 1
		for g in range(u):
			if ouns[u] == ouns[g]:
				ouns[u] = '1'
quest = 0
for k in range(len(ouns)):
	if ouns[k] != '1':
		quest += 1
quest += 1
if quest % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s.lower()
c = set(s)
a = len(c)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
usernameset = set()
for x in username:
	if x not in usernameset:
		usernameset.add(x)
if len(usernameset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


uname = input()
c = len(set(uname))
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
st = set()
s = str(input())
for i in s:
	if i not in st:
		st.add(i)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
x = list(username)
instincts = ''
for char in username:
	if char in instincts:
		continue
	elif char in username[x.index(char) + 1:]:
		instincts += char
	else:
		instincts += char
if len(instincts) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user_name = input()
x = 0
import math as math
for i in range(len(user_name)):
	if user_name.count(user_name[i]) == 1:
		x += 1
	if user_name.count(user_name[i]) != 1:
		x += 1 / user_name.count(user_name[i])
x1 = math.ceil(x)
if x1 - x < 0.5:
	if x1 % 2 == 0:
		print('CHAT WITH HER!')
	if x1 % 2 != 0:
		print('IGNORE HIM!')
else:
	if (x1 - 1) % 2 == 0:
		print('CHAT WITH HER!')
	if (x1 - 1) % 2 != 0:
		print('IGNORE HIM!')


from collections import Counter
username = input()
characteres = dict(Counter(username))
print('CHAT WITH HER!' if len(characteres) % 2 == 0 else 'IGNORE HIM!')


name = str(input())
unique = [name[0]]
for l in name:
	if unique.count(l) == 0:
		unique.append(l)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def count_distinct(name):
	occured = []
	for char in name:
		if char not in occured:
			occured.append(char)
	return len(occured)
name = input()
if count_distinct(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input().strip()
le = len(set(inp))
print('IGNORE HIM!' if le % 2 == 1 else 'CHAT WITH HER!')


s = input().strip()
res = {}
for i in s:
	res[i] = res.get(i, 0) + 1
print('IGNORE HIM!' if len(res) & 1 else 'CHAT WITH HER!')


l = list(map(str, input()))
unique = list(set(l))
uniqueLength = len(unique)
if uniqueLength % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input().strip())
name_set = set(list(name))
if len(name_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
chat = Counter(input().lower())
if len(chat) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
count = 0
for letter in 'abcdefghijklmnopqrstuvwxyz':
	if letter in username:
		count += 1
sttmnt = 'CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!'
print(sttmnt)


string = input()
unique = []
for char in string:
	if char not in unique:
		unique.append(char)
n = len(unique)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
string = {x for x in string}
if len(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word1 = input()
alphabet = 'abcdefghijklmnopqrstuvwxyz'
x = 0
for i in range(len(alphabet)):
	if alphabet[i] in word1:
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strng = input()
array = [0] * 26
count = 0
for i in strng:
	if array[ord(i) - ord('a')] == 0:
		count += 1
		array[ord(i) - ord('a')] = 1
if count & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = [str(i) for i in s]
from collections import Counter
d = Counter(s)
if len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dups = 0
duplicates = []
for letter in name:
	if letter in duplicates:
		dups += 1
	else:
		duplicates.append(letter)
if (len(name) - dups) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for i in a:
	b.append(i)
c = ''
i = 0
while len(b) != 0:
	ch = b[i]
	while ch in b:
		b.remove(ch)
	c = c + ch
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
for ln in sys.stdin:
	mp = dict()
	num = 0
	for c in ln:
		if c != '\n' and c not in mp:
			mp[c] = True
			num += 1
	if num % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


u = set(input())
c = 0
for item in u:
	c += 1
print('IGNORE HIM!') if c % 2 != 0 else print('CHAT WITH HER!')


text = input()
symbols = set()
for i in range(len(text)):
	symbols.add(text[i])
if len(symbols) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


line = input().strip('\n\r\t ')
s = set()
for c in line:
	s.add(c)
print('CHAT WITH HER!' if len(s) % 2 == 0 else 'IGNORE HIM!')


inp = input()
inp_lis = []
inp_lis.extend(inp)
inp_set = set(inp_lis)
if len(inp_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
lst = list(s)
lst1 = []
for i in lst:
	if i not in lst1:
		lst1.append(i)
l = len(lst1)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


li = []
name = input()
for x in name:
	if x in li:
		continue
	li.append(x)
if len(li) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
s = set()
for _ in str:
	s.add(_)
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(s) % 2])


x = input()
p = ''
for char in x:
	if char not in p:
		p += char
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def fun2():
	name = input()
	ln = len(name)
	ls = []
	for i in range(ln):
		if name[i] not in name[i + 1:]:
			ls.append(name[i])
	lenls = len(ls)
	if lenls % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
fun2()


name = input()
characters = [i for i in name]
sets = set(characters)
ln = len(sets)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
a = []
count = 0
for i in string:
	if i in a:
		continue
	else:
		a.append(i)
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
s = sys.stdin.readline().strip()
m = {i for i in s}
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strng = input()
gotset = set(strng)
if len(gotset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = set()
ctr = 0
for ch in name:
	if ch not in s:
		s.add(ch)
		ctr += 1
if not ctr & 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
s = list(dict.fromkeys(list(sys.stdin.readline())[:-1]))
if len(s) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = input()
unique = []
for character in user:
	if not character in unique:
		unique.append(character)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
ans = 1
mark = 0
for i in range(1, len(n)):
	for j in range(0, i):
		if n[i] == n[j]:
			mark = 1
	if mark == 0:
		ans = ans + 1
	else:
		mark = 0
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


imya = str(input())
imya2 = []
for i in imya:
	if i not in imya2:
		imya2.append(i)
if len(imya2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
list1 = list(word)
list2 = set(list1)
if len(list2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
total = 0
for i in range(len(x)):
	if i + 1 < len(x):
		if x.find(x[i], i + 1) == -1:
			total += 1
if total % 2 == 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


S = input()
M = {x for x in S}
if len(M) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input('')
chars = 'abcdefghijklmnopqrstuvwxyz'
total = len(string)
for char in chars:
	count = string.count(char)
	if count > 1:
		total -= count - 1
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().strip()
ss = set([si for si in s])
if len(ss) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
print(['CHAT WITH HER!', 'IGNORE HIM!'][len({*x}) % 2])


s = input()
c = 0
lst = []
for i in s:
	lst.append(i)
for i in range(len(lst)):
	for j in range(i + 1, len(lst)):
		if lst[i] == lst[j] and lst[i] != '000':
			lst[j] = '000'
			c = c + 1
if (len(lst) - c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input()
words = list()
counter = 0
for i in N:
	if i not in words:
		counter += 1
		words.append(i)
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lis = list(map(str, input()))
coun = {}
for i in range(len(lis)):
	try:
		coun[lis[i]] += 1
	except:
		coun[lis[i]] = 1
if len(coun.keys()) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
s = list(username)
l = len(s)
judge = []
for i in range(l):
	if s[i] not in judge:
		judge += s[i]
ll = len(judge)
if ll % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
ans = [0] * 26
c = 0
for i in str:
	if not ans[ord(i) - 97]:
		ans[ord(i) - 97] = 1
		c += 1
print('IGNORE HIM!' if c % 2 else 'CHAT WITH HER!')


from sys import stdin
n = stdin.readline().strip()
s = []
for z in n:
	if z not in s:
		s.append(z)
	else:
		continue
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
char_seen = []
for char in word:
	if char not in char_seen:
		char_seen.append(char)
DistinctString = ''.join(char_seen)
length = len(DistinctString)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
m = len(x)
if m == 1:
	print('IGNORE HIM!')
else:
	c = 1
	for i in range(1, m):
		for j in range(i):
			e = 1
			if x[j] == x[i]:
				e = 0
				break
		c = c + e
	d = 2 * int(c / 2)
	if d == c:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


try:
	gender = input()
	if len(gender) >= 1 and len(gender) <= 100:
		if len(set(gender)) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
except Exception as e:
	print(e)


s = input()
ln = len(s)
c = 1
ch = ''
f = 0
lst = [s[0]]
for i in range(0, ln, 1):
	ch = s[i]
	for j in range(0, len(lst), 1):
		if ch == lst[j]:
			f = 1
			break
	if f == 0:
		c = c + 1
		lst.append(ch)
	f = 0
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(input())
n = len(name)
gender = []
for i in range(n):
	if name[i] not in gender:
		a = name[i]
		gender.append(a)
con = len(gender)
if con % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = list(s)
lst = []
for i in range(len(s)):
	if s.count(s[i]) > 1:
		s.remove(s[i])
		s.insert(i, 0)
for i in range(len(s)):
	if s[i] != 0:
		lst.append(1)
if sum(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
for i in name:
	name = name.replace(i, i + ' ')
name = ''.join(set(name.split()))
num = name.count('') - 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
char_dict = {}
count = 0
for c in s:
	if c not in char_dict.keys():
		char_dict[c] = 1
		count += 1
print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


str = input()
uniques = []
for item in str:
	if item not in uniques:
		uniques.append(item)
if len(uniques) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


se = input()
s = []
for i in range(len(se)):
	s += [se[i]]
for i in range(len(s) - 1):
	for j in range(i + 1, len(s)):
		if ord(s[i]) < ord(s[j]):
			temp = s[i]
			s[i] = s[j]
			s[j] = temp
sis = [s[0]]
for i in range(len(s) - 1):
	if s[i] != s[i + 1]:
		sis += [s[i + 1]]
if len(sis) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
unique_list = []
for letter in string:
	if letter not in unique_list:
		unique_list.append(letter)
if len(unique_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input('')
list1 = list()
for i in range(len(str)):
	list1.append(str[i])
list1.sort()
count = 1
for i in range(len(str) - 1):
	if list1[i] != list1[i + 1]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	w = set(list(str(input())))
	print('CHAT WITH HER!' if len(w) % 2 == 0 else 'IGNORE HIM!')
main()


b = input()
a = list(b)
ans = 0
for i in range(0, len(a)):
	for j in range(i + 1, len(a)):
		if a[i] == a[j]:
			a[j] = ''
for i in range(0, len(a)):
	if a[i] != '':
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = []
t = 0
for i in range(len(n)):
	if n[i] not in l:
		t += 1
		l.append(n[i])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
for line in sys.stdin:
	unique_chars = set(line.strip())
	if len(unique_chars) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	break


def boyOrGirl(s):
	charsFound = []
	for char in s:
		if char not in charsFound:
			charsFound.append(char)
	if len(charsFound) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(boyOrGirl(input()))


n = input()
l = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
a = 0
list1 = list(set(n))
for i in range(len(list1)):
	if list1[i] in l:
		a += 1
if a % 2 == 0:
	print('CHAT WITH HER!')
if a % 2 == 1:
	print('IGNORE HIM!')


s = input()
n = 0
for i in range(97, 123):
	for j in range(len(s)):
		if i == ord(s[j]):
			n = n + 1
			break
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
new = sorted(n)
lists = list(new)
for i in range(0, len(new) - 1):
	if new[i] == new[i + 1]:
		lists.remove(new[i])
if len(lists) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()

def removeDuplicate(str):
	s = set(str)
	s = ''.join(s)
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
removeDuplicate(x)


s1 = input()
foo1 = ''.join(set(s1))
x = len(foo1)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = str(input())
dic = {}
for i in st:
	if i not in dic:
		dic[i] = True
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = sorted(tuple(input()))
size = len(s)
final_size = size
c = s[0]
for i in range(1, size):
	if s[i] == c:
		final_size -= 1
	c = s[i]
if final_size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
dischar = list(set(username))
if len(dischar) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


l = 0
username = input()
for i in range(97, 123):
	if chr(i) in username:
		l += 1
print('CHAT WITH HER!' if l % 2 == 0 else 'IGNORE HIM!')


a = input()
lis = []
for i in a:
	if i not in lis:
		lis.append(i)
ab = len(''.join(lis))
ab = ab % 2
if ab == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
b = ''
for ch in s:
	if ch not in b:
		b = b + ch
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
seen = [False] * 26
for letter in word:
	seen[ord(letter) - ord('a')] = True
count = 0
for boolean in seen:
	if boolean:
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
lis = []
for i in string:
	if i not in lis:
		lis.append(i)
verd = len(lis)
if verd % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def list_input():
	return list(map(int, input().split()))

def multiple_input():
	return map(int, input().split())
s = input()
l = set(s.strip())
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input().lower()
n = []
dup = []
for i in range(len(name)):
	n.append(name[i])
for i in n:
	if i not in dup:
		dup.append(i)
num = len(dup)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = list(dict.fromkeys(input()))
if len(inp) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
N = 1
for i in range(1, len(s)):
	j = i
	flag = 0
	for k in range(j):
		if s[k] == s[i]:
			flag += 1
			break
	if flag == 0:
		N += 1
if N % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
c = []
for ss in s:
	is_in = False
	for cc in c:
		if cc == ss:
			is_in = True
	if not is_in:
		c += [ss]
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


newl = []
user = input()
for item in user:
	if item not in newl:
		newl.append(item)
if len(newl) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
b = []
suma = 0
for i in range(0, 26):
	b.append(0)
for ch in w:
	sk = ord(ch) - 97
	b[sk] = 1
for v in b:
	suma = suma + v
if suma % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = {}
flag = 0
for i in n:
	d[i] = 1
if len(d.keys()) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
n = len(s)
m = []
k = 0
for i in range(n):
	for j in range(n):
		if j > i:
			if s[i] == s[j]:
				m = m + [s[i]]
				k += 1
				break
k = n - k
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
w = []
r = 0
for i in a:
	if i not in w:
		r += 1
		w.append(i)
if r % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


d = []
for l in input():
	if l not in d:
		d += [l]
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(d) % 2])


st = input()
new_st = ''
for c in st:
	if c.isalnum():
		new_st += c
num_dif = len(set(new_st))
if num_dif % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str1 = str(input())
l = []
count = 0
for i in str1:
	if i not in l:
		l.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def fun(p):
	r = 0
	c = 0
	for i in p:
		x = 1
		x = x << ord(i) - 97
		if x & r < 1:
			r = x | r
			c += 1
	if c % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
a = input()
print(fun(a))


def ii():
	return int(input())

def si():
	return input()

def mi():
	return map(int, input().split())

def li():
	return list(mi())
l = ['a', 'e', 'i', 'o', 'u', 'y', 'A', 'E', 'O', 'I', 'U', 'Y']
s = si()
s = list(set(s))
s = len(s)
if s % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
aux = set()
for letter in word:
	aux.add(letter)
if len(aux) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
s = set(user_name)
w_len = len(s)
if w_len % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input('')
data = [i for i in n]
dataf = list(set(data))
if len(dataf) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
l = []
for i in t:
	l.append(i)
for i in range(len(l) - 1):
	for j in l:
		if l.count(j) > 1:
			l.pop(l.index(j))
	i = i + 1
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
elif len(l) % 2 == 1:
	print('IGNORE HIM!')


a = [str(i) for i in input()]
f = set(a)
t = len(f)
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input(''))
new_username = ''
for char in username:
	if char not in new_username:
		new_username = new_username + char
if len(new_username) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
ans = set()
for i in str:
	ans.add(i)
print('IGNORE HIM!' if len(ans) % 2 else 'CHAT WITH HER!')


s = input()
dic = set()
for el in s:
	dic.add(el)
if len(dic) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = input()
lst = []
for i in st:
	if i in lst:
		continue
	else:
		lst.append(i)
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


j = input()
h = set()
for i in range(len(j)):
	h.add(j[i])
if len(h) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = {}
for i in s:
	if i not in d:
		d[i] = 1
	else:
		d[i] += 1
if len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


arr = 'abcdefghijklmnopqrstuvwxyz'
a = input()
arr = [0] * 26
counter = 0
i = 0
for i in range(len(a)):
	arr[ord(a[i]) % 97] = int(arr[ord(a[i]) % 97]) + 1
for i in range(len(arr)):
	if int(arr[i]) > 0:
		counter = counter + 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def get_distinct_chars_num(string):
	ans = 0
	distinct_chars = set()
	for ch in string:
		if ch not in distinct_chars:
			ans += 1
			distinct_chars.add(ch)
	return ans

def is_odd(num):
	return num % 2 != 0
s = input()
distinct_chars_num = get_distinct_chars_num(s)
if is_odd(distinct_chars_num):
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()

def firstRepeatedChar(str):
	h = {}
	for ch in str:
		if ch in h:
			h[ch] += 1
		else:
			h[ch] = 0
	if len(h.keys()) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(firstRepeatedChar(name))


l = list(map(str, input().split()))
s = set(l[0])
l = list(s)
ll = len(l)
if ll % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter

def is_male(name):
	word_dict = Counter(name)
	if len(word_dict) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
name = input()
is_male(name)


myset = input()
mys = []
for char in myset:
	mys.append(char)
if len(set(mys)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_code = input()
code = list(input_code)
letters = set(code)
n = len(letters)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = []
total = 0
for x in s:
	if x not in arr:
		arr.append(x)
		total += 1
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
n.sort()
for i in range(len(n) - 1):
	if n[i] == n[i + 1]:
		n[i] = ' '
m = ''.join(n)
k = ''.join(m.split())
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = input()
s = 0
se = set(ch)
x = 0
print('CHAT WITH HER!' if len(se) % 2 == 0 else 'IGNORE HIM!')


a = str(input())
a = set(a)
if len(a) & 1 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


w = str(input())
l = list(w)
n = 0
l = set(l)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
p = ''
for i in range(len(name)):
	if name[i] not in p:
		p += name[i]
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(p) % 2])


from sys import stdin
string = stdin.readline()
distinct = len(set(string)) - 1
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = str(input())
s = set()
for u in word:
	s.add(u)
output = 'CHAT WITH HER!' if len(s) % 2 == 0 else 'IGNORE HIM!'
print(output)


def find_gender(string):
	chars = {}
	result = None
	for char in string:
		chars[char] = True
	if len(chars) % 2 == 0:
		result = 'CHAT WITH HER!'
	else:
		result = 'IGNORE HIM!'
	return result
string = input()
result = find_gender(string)
print(result)


line = input()
n = len(line)
num = 0
i = 0
for i in range(n):
	if line[i] != ' ':
		num += 1
		line = line.replace(line[i], ' ')
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
stringArray = [''] * 101
counterDistinctChar = 0
for i in range(len(string)):
	if string[i] not in stringArray:
		stringArray[i] = string[i]
		counterDistinctChar += 1
if counterDistinctChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(str(input()))
b = []
c = 0
for i in a:
	if b.count(i) == 0:
		b.append(i)
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def sol():
	name = list(input())
	d = 1
	l = sorted(name)
	for i in range(0, len(l) - 1):
		if l[i] != l[i + 1]:
			d += 1
	if d % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
try:
	sol()
except:
	pass


def removeDuplicate(str):
	s = set(str)
	s = ''.join(s)
	t = ''
	for i in str:
		if i in t:
			pass
		else:
			t = t + i
	return len(t)
str = input()
len = removeDuplicate(str)
if len % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
c = [0] * 26
count = 0
for i in range(len(s)):
	c[ord(l[i]) - 97] += 1
for i in range(26):
	if c[i] > 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


answer = input()
answer = [x for x in answer]
result = [0] * 26
for i in range(len(answer)):
	x = ord(answer[i])
	x = x % 97
	result[x] += 1
count = 0
for x in result:
	if x >= 1:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
n = len(s)
e = []
for i in range(26):
	e.append(0)
for i in range(n):
	e[ord(s[i]) - ord('a')] = 1
num = 0
for i in range(26):
	if e[i]:
		num += 1
if num % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


txt = input()
ch = ''
i = 0
for elt in txt:
	if elt not in ch:
		i += 1
		ch += elt
if i % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
ar = [st[0]]
for i in range(len(st)):
	for k in range(len(ar)):
		m = len(ar)
		if st[i] == ar[k]:
			break
		elif k == m - 1:
			ar.append(st[i])
if len(ar) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
a = []
for i in range(len(x)):
	if x[i] in a and i != 0:
		continue
	else:
		a.append(x[i])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


uname = list(input())
letters = set(uname)
l = len(letters)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boyOrGirl(s):
	s1 = ''.join([i for i in sorted([i for i in s])])
	count = 1
	for i in range(len(s1) - 1):
		if s1[i] != s1[i + 1]:
			count += 1
	return 'CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!'
s = input()
print(boyOrGirl(s))


input = input()
arr = [char for char in input]
dicWords = {}
for item in arr:
	if item in dicWords:
		dicWords[item] += 1
	else:
		dicWords[item] = 1
if len(dicWords) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
newN = ''.join(set(n))
if len(newN) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys, math

def ii():
	return int(input())

def mii():
	return map(int, input().split())

def lmii():
	return list(mii())

def main():
	s = input()
	d = len(set(s))
	if d % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


user_names = input()
s = list(set(user_names))
if len(s) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def solution(st):
	x = list(st)
	x1 = set(x)
	cnt = len(x1)
	if cnt % 2 != 0:
		return 'IGNORE HIM!'
	elif cnt % 2 == 0:
		return 'CHAT WITH HER!'
s = input()
print(solution(s))


b = input()
c = []
for i in range(0, len(b)):
	c.append(b[i])
c.sort()
a = [c[0]]
for i in range(1, len(c)):
	if c[i - 1] != c[i]:
		a.append(c[i])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
s = ''
c = 0
for i in n:
	if i in s:
		pass
	else:
		c = c + 1
		s = s + i
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = [x for x in input()]
d = dict.fromkeys(s)
s = list(d)
l = len(s)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math

def get_int_vector():
	return [int(x) for x in input().split()]
seq = input()
res = set()
for i in seq:
	res.add(i)
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
uni = ''
cunt = 0
for i in word:
	if i not in uni:
		uni += i
		cunt += 1
if cunt % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
name = [i for i in name]
distinct = set(name)
n = len(distinct)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
palabra = input()
pal = Counter(palabra)
spal = sorted(pal)
res = 0
for i in spal:
	res += 1
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
input = stdin.readline

def borg(s):
	return ['CHAT WITH HER!', 'IGNORE HIM!'][len(set(s)) & 1]
print(borg(input().strip()))


s = input()
mylist = list(dict.fromkeys(s))
s = ''.join(mylist)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
l1 = list(a)
l2 = list(set(l1))
if len(l2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(str(input()))
r = set(n)
f = len(list(r))
if f % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
dic = {}
ans = 0
for i in A:
	if i in dic:
		dic[i] += 1
	else:
		ans += 1
		dic[i] = 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


userName = input()
result = ''.join(dict.fromkeys(userName))
l = len(result)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
distinct = ''
for i in range(len(user_name)):
	if i == 0:
		distinct = distinct + user_name[0]
	else:
		checker = True
		for j in range(len(distinct)):
			if distinct[j] == user_name[i]:
				checker = False
		if checker:
			distinct = distinct + user_name[i]
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
li = unique_list = [e for (i, e) in enumerate(string) if string.index(e) == i]
l = len(li)
if l % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
letters = set()
for letter in name:
	letters.add(letter)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
str2 = ''
for x in str1:
	if x in str2:
		continue
	else:
		str2 += x
if len(str2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
new_string = ''.join(dict.fromkeys(string))
if len(new_string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
arr = [0 for i in range(26)]
for x in range(26):
	arr[x] = 0
for x in text:
	arr[ord(x) - 97] += 1
a = 0
for x in range(26):
	if arr[x] != 0:
		a += 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = [False] * 200
count = 0
for i in range(0, len(a)):
	if not b[ord(a[i])]:
		count += 1
		b[ord(a[i])] = True
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main(s):
	news = []
	for i in s:
		for j in news:
			if i == j:
				news.remove(j)
		news.append(i)
	if len(news) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
s = input()
print(main(s))


from sys import stdout
name = input()
out = 'CHAT WITH HER!' if len(set(name)) % 2 == 0 else 'IGNORE HIM!'
stdout.write(out)


def split(word):
	return [char for char in word]
name = input()
nb = len(set(split(name)))
if nb % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = s.replace('', ' ')
s = s.split()
s = set(s)
l = len(s)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
fq = 26 * [0]
for c in s:
	fq[ord(c) - ord('a')] += 1
nCount = 0
for i in range(26):
	if fq[i] != 0:
		nCount += 1
if nCount % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
print('CHAT WITH HER!' if not sum((s.find(chr(x)) != -1 for x in range(97, 123))) % 2 else 'IGNORE HIM!')


s1 = input()
t1 = set(s1)
if len(t1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
num = []
for i in string:
	if i not in num:
		num.append(i)
if len(num) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input().lower()
name2 = {}
count = 0
for (i, st1) in enumerate(name):
	if st1 not in name2:
		name2[st1] = 1
		count += 1
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
input = sys.stdin.readline

def inp():
	return input()

def inlt():
	return list(input())

def insr():
	s = input()
	return list(s[:len(s) - 1])

def invr():
	return map(int, input().split())
x = inlt()
ocalph = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
for i in ocalph:
	if x.count(i) > 1:
		while x.count(i) > 1:
			x.remove(i)
if len(x) % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ch = input()
e = list(set(list(ch)))
if len(e) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def result(input_list):
	result_list = list(set(input_list))
	Even = 'CHAT WITH HER!'
	odd_number = 'IGNORE HIM!'
	if len(result_list) % 2 == 0:
		return Even
	else:
		return odd_number
user_input = list(input())
print(result(user_input))


name = input()
t = ''
for i in name:
	if i not in t:
		t += i
if len(t) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ent = input()
letters = {}
for i in ent:
	try:
		letters[i] += 0
	except:
		letters[i] = 1
		pass
num_letters = sum(letters.values())
print('CHAT WITH HER!' if num_letters % 2 == 0 else 'IGNORE HIM!')


word = input()
lis = []
for x in word:
	lis.append(x)
unique_list = []
for z in lis:
	if z not in unique_list:
		unique_list.append(z)
test = len(unique_list)
if test % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


data = list(input())
distinct_data = set(data)
if len(distinct_data) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
setstr = set(str1)
if len(setstr) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


m = input()
w = list(m)
w.sort()
strlen = len(w)
for i in range(0, len(w) - 1):
	if w[i] == w[i + 1]:
		strlen -= 1
if strlen % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
t = ''
for c in s:
	if t.count(c) == 0:
		t = t + c
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
l = list()
for char in a:
	if char not in l:
		l.append(char)
if len(l) % 2 != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = [x for x in a]
b.sort()
s = 0
for i in range(0, len(b) - 1):
	if b[i] != b[i + 1]:
		s = s + 1
if s % 2 == 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
output = ''
for ch in s:
	if ch not in output:
		output += ch
n = len(output)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
res = set()
for c in string:
	res.add(c)
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = str(input()).lower()
mylist = list(dict.fromkeys(nickname))
if int(len(mylist)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
c = {s for s in name}
print('CHAT WITH HER!' if not len(c) % 2 else 'IGNORE HIM!')


word = list(input())
dst = []
for i in range(len(word)):
	if word[i] in dst:
		pass
	else:
		dst.append(word[i])
if len(dst) / 2 == len(dst) // 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
line = input()
line = list(line)
setline = set(line)
if len(setline) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s = list(s)
s.sort()
a = ''.join(s)
k = len(a)
sum = 0
for i in range(0, k - 1):
	if a[i] != a[i + 1]:
		sum = sum + 1
if sum % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


counter = 0
a = 0
b = ''
x = input()
for i in range(len(x)):
	if x[i] not in b:
		b += x[i]
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
elif len(b) % 2 != 0:
	print('IGNORE HIM!')


n = str(input())
t = []
for letter in n:
	t.append(letter)
b = list(set(t))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
temp = ''
count = 0
for char in string:
	if char not in temp:
		temp += char
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = set(s)
m = len(k)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
count = 0
l = []
while count < len(n):
	k = n[count]
	count = count + 1
	if k not in l:
		l += k
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = input()
lst1 = []
for j in range(0, len(i)):
	if i[j] not in lst1:
		lst1.append(i[j])
if len(lst1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


distinct = []
count = 0
for i in list(input()):
	if i in distinct:
		continue
	else:
		distinct.append(i)
		count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
remem = ''
dif = 0
for let in name:
	if remem.count(let) == 0:
		dif += 1
	remem += let
if dif % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	name = list(input())
	check = set(name)
	num = 0
	for _ in check:
		num += 1
	if num % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


from sys import stdin, stdout

def main():
	username = str(stdin.readline().rstrip())
	unique = ''
	for index in range(0, len(username)):
		if username[index] not in unique:
			unique = unique + str(username[index])
	if len(unique) % 2 == 1:
		stdout.write('IGNORE HIM!\n')
	else:
		stdout.write('CHAT WITH HER!\n')
main()


import sys
name = sys.stdin.readline().rstrip()
freq = {}
for c in name:
	if c in freq:
		freq[c] += 1
	else:
		freq[c] = 1
if len(freq.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
l = len(a)
s = set()
for i in range(l):
	s.add(a[i])
t = len(s)
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
l = len(s)
t = []
for i in s:
	if s.count(i) > 1 and i not in t:
		l = l - s.count(i) + 1
		t.append(i)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


y = [0] * 256
x = input()
for i in x:
	y[ord(i)] = 1
y = y.count(1)
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
p = len(s)
l = []
k = 0
for i in range(len(s)):
	if s[i] in l:
		k += 1
		continue
	else:
		l.append(s[i])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
char = set()
for i in range(len(name)):
	char.add(name[i])
num = []
for i in char:
	num.append(i)
q = len(num)
if q % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for i in range(len(a)):
	if i < len(a) - 1:
		m = 0
		for j in range(i + 1, len(a)):
			if a[i] == a[j]:
				m += 1
		if m > 0:
			pass
		elif m == 0:
			b.append(a[i])
	else:
		b.append(a[i])
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


v = input()
arr = []
for item in v:
	if item not in arr:
		arr.append(item)
if len(arr) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


S = input()
k = []
for i in range(len(S)):
	k.append(S[i])
l = set(k)
L = list(l)
if len(L) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
x = True
b = input()
for i in b:
	a[ord(i) - 97] += 1
a.sort(reverse=True)
try:
	if a.index(0) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except ValueError:
	print('CHAT WITH HER!')


def main():
	name = input()
	arr = []
	for char in name:
		if not char in arr:
			arr.append(char)
	if len(arr) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


word = input()
word_len = len(word)
simbols = [0] * 26
answer = 0
for i in range(word_len):
	simbols[ord(word[i]) - ord('a')] += 1
for i in range(26):
	if simbols[i] > 0:
		answer += 1
if answer % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
res = []
for i in user_name:
	if i.lower() not in res:
		res.append(i)
if len(res) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


usn = input()
rep = len(usn)
done = []
for c in usn:
	if usn.count(c) > 1:
		if c in done:
			continue
		else:
			rep -= usn.count(c) - 1
			done.append(c)
res = 'CHAT WITH HER!' if rep % 2 == 0 else 'IGNORE HIM!'
print(res)


inp = input()
store = []
for letter in inp:
	if letter not in store:
		store.append(letter)
print('CHAT WITH HER!' if len(store) % 2 == 0 else 'IGNORE HIM!')


stri = input()
list1 = []
count = 0
for i in stri:
	if i not in list1:
		count += 1
		list1.append(i)
k = len(list1)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
n = len(s)
w = list()
cnt = 0
for i in range(n):
	if s[i] not in w:
		cnt += 1
		w.append(s[i])
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
name_len = len(set(input()))
if name_len % 2 == 0:
	stdout.write('CHAT WITH HER!\n')
else:
	stdout.write('IGNORE HIM!\n')


x = input()
mnozica = set([i for i in x])
if len(mnozica) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input().strip()
x = list(a)
x1 = list(set(x))
if not len(x1) % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
a = []
for i in username:
	if i not in a:
		a.append(i)
	pass
count = len(a)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
l = {e for e in username}
if len(l) % 2:
	print('IGNORE HIM' + '!')
else:
	print('CHAT WITH HER' + '!')


name = input()
dict = {}
for i in name:
	dict.setdefault(i, 1)
if len(dict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = []
for k in input().strip():
	if k not in l:
		l.append(k)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()

def gender(str1):
	distinct_char = set(str1)
	distinct_count = len(distinct_char)
	if distinct_count % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(gender(str1))


list1 = []
name = input()
for i in range(len(name)):
	list1.append(name[i])
sect1 = set(list1)
num = len(sect1)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import os
import sys
import time
from io import BytesIO, IOBase

def localInput():
	sys.stdin = open('inputf.in', 'r')
	sys.stdout = open('outputf.in', 'w')
	sys.stderr = open('error.txt', 'w')

def print_to_stderr(*a):
	print(*a, file=sys.stderr)
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')

def value():
	return tuple(map(int, input().split()))

def array():
	return [int(i) for i in input().split()]

def Int():
	return int(input())

def Str():
	return input()

def arrayS():
	return [i for i in input().split()]

def solve():
	s = str(input())
	d = set()
	for letter in s:
		d.add(letter)
	if len(d) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')

def main():
	test_cases = 1
	for test_units in range(test_cases):
		solve()
execution_time_start = time.clock()
main()
execution_time_stop = time.clock()
print_to_stderr('Total Time Taken: %f Seconds!' % (execution_time_stop - execution_time_start))


a = input()
j = ''
for i in a:
	if not j.__contains__(i):
		j = j + i
print('CHAT WITH HER!' if j.__len__() % 2 == 0 else 'IGNORE HIM!')


st = input()
li = list((char for char in st))
se = set(li)
if len(se) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input('')
name = name.lower()
result = []
for c in name:
	if c not in result:
		result.append(c)
result = ''.join(result)
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
c = 0
list1 = []
for i in a:
	if i not in list1:
		list1.append(i)
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
list_text = list(text)
num = len(set(list_text))
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
my_dict = dict()
for letter in s:
	my_dict[letter] = my_dict.get(letter, 0) + 1
dict_sum = len(my_dict)
if dict_sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


y = input()
p = list(set(y))
n = [0]
k = 1
c = 1
while k < len(p):
	if n != p[k]:
		c += 1
	k += 1
x = c
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = set(input())
n = len(s)
o = 'CHAT WITH HER!'
if n % 2 == 1:
	o = 'IGNORE HIM!'
print(o)


dict = {}
line = input()
for ch in line:
	dict[ch] = 1
if len(dict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
count = 0
for i in range(len(s)):
	t = True
	for j in range(i + 1, len(s)):
		if s[i] == s[j]:
			t = False
			break
	if t:
		count += 1
if count % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin

def main():
	cad = list(stdin.readline().strip())
	vacia = []
	cont = 0
	for i in cad:
		if i not in vacia:
			vacia.append(i)
			cont += 1
	if cont % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


a = input('')
g = []

def add(m):
	l = False
	for i in g:
		if i == m:
			l = True
	if l != True:
		g.append(m)
for x in a:
	add(x)
if len(g) % 2 > 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input('')
from collections import defaultdict
fq = defaultdict(int)
for w in s:
	fq[w] += 1
if len(fq.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def dist(s):
	sol = []
	l = len(s)
	for c in s:
		if c not in sol:
			sol.append(c)
	return len(sol)

def solve():
	s = input()
	if dist(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
solve()


n = str(input())
n2 = set(n)
n3 = len(n2)
if n3 % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from string import ascii_lowercase
s = input()
myMap = dict()
for i in ascii_lowercase:
	myMap[i] = 0
cnt = 0
for i in range(len(s)):
	if myMap[s[i]] == 0:
		myMap[s[i]] += 1
		cnt += 1
if cnt % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


alp = ''
s = str(input())
i = int(0)
cur = 0
for i in range(len(s)):
	if alp.count(s[i]) == 0:
		cur += 1
		alp += s[i]
if cur % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import math
st = ''

def func(s):
	l1 = []
	for i in s:
		l1.append(i)
	if len(set(l1)) % 2:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
for _ in range(1):
	s = input()
	st += str(func(s)) + '\n'
print(st)


name = input()
sett = {''}
for i in range(len(name)):
	sett.add(name[i])
sett.remove('')
if len(sett) / 2 == int(len(sett) / 2):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name = list(name)
name.sort()
occ = 0
for i in range(0, len(name) - 1):
	if name[i] != name[i + 1]:
		occ = occ + 1
if (occ + 1) % 2 != 0 or len(name) == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


l = str(input())
characters = []
for i in l:
	if i in characters:
		continue
	else:
		characters.append(i)
k = len(characters) % 2
if k == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Convert(string):
	list1 = []
	list1[:0] = string
	return list1
s = str(input())
d = Convert(s)
lst = []
for i in d:
	if i not in lst:
		lst += [i]
if len(lst) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = list(input().strip())
length = int(len(string))
string = sorted(string)
counter = 1
for i in range(length - 1):
	if string[i] != string[i + 1]:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l = list(x)
n = len(l)
dic = {}
for i in range(n):
	if l[i] not in dic:
		dic[l[i]] = i
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()

def is_even(n):
	if n % 2 == 0:
		return True
is_woman = is_even(len(set(text)))
if is_woman:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = []
n = len(name)
for i in range(n):
	if name[i] not in s:
		s.append(name[i])
length = len(s)
if length % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
usernameSet = set(username)
print('IGNORE HIM!' if len(usernameSet) % 2 else 'CHAT WITH HER!')


username = str(input())
distnict = ''
for user in username:
	if user not in distnict:
		distnict += user
if len(distnict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def detector(string):
	x = []
	for char in string:
		if char not in x:
			x.append(char)
	if len(x) % 2 == 0:
		print('CHAT WITH HER!')
	elif len(x) % 2 != 0:
		print('IGNORE HIM!')
string = input()
detector(string)


def chaine():
	while True:
		ch = input()
		if ch.isalpha() and ch.islower() and (len(ch) < 101):
			break
		else:
			continue
	return ch
ch = chaine()
x = 0
L = []
for i in range(0, len(ch)):
	if ch[i] not in L:
		x += 1
		L.append(ch[i])
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str_input = list(input())
str_input.sort()
count = 0
for i in range(len(str_input)):
	count += 1
for i in range(len(str_input) - 1):
	if str_input[i] == str_input[i + 1]:
		count -= 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
result = 0
char_seen = []
for char in username:
	if char not in char_seen:
		char_seen.append(char)
		result += 1
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
distinct = 0
import math
for i in name:
	a = name.count(i)
	if a == 1:
		distinct += 1
	else:
		distinct += 1 / a
distinct = round(distinct)
if distinct % 2 != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
uniques = set()
for x in name:
	uniques.add(x)
if len(uniques) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


list1 = list(map(str, input()))
s = set(list1)
list2 = list(s)
if len(list2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = 0
str = list()
for i in range(len(s)):
	str.append(s[i])
i = 1
str.sort()
while i < len(s):
	if str[i] != str[i - 1]:
		c = c + 1
	i = i + 1
if (c + 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l = []
l = list(x)
y = len(set(l))
if y % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


y = input()
ct = 0
z = []
for i in range(0, len(y)):
	if y[i] not in z:
		ct += 1
		z.append(y[i])
if ct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


array = []
for i in input():
	if i not in array:
		array.append(i)
if array.__len__() % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = input()
lis = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
cn = 0
for n1 in lis:
	co = 0
	for n2 in st:
		if n1 == n2:
			co += 1
	if co > 0:
		cn += 1
if cn % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
m = 0
b = 0
for i in a:
	for t in a:
		if i == t:
			m += 1
	if m >= 2:
		a = a[:b] + a[b + 1:]
		b -= 1
	m = 0
	b += 1
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def isEven(n):
	if n % 2 == 0:
		return 1
	else:
		return 0
name = input()
count = 0
l = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
for j in l:
	for i in range(len(name)):
		if j == name[i]:
			count += 1
			break
if isEven(count):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
cha = [0 for x in range(26)]
count = 0
for i in s:
	cha[ord(i) - 97] += 1
for i in cha:
	if i != 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
n = len(a)
idx = 0
num = [0] * 26
for x in range(n):
	num[ord(a[x]) - ord('a')] = 1
num.sort(reverse=True)
for x in range(26):
	if num[x] == 0:
		idx = x
		break
if idx % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
x = dict.fromkeys(str)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
l = []
counter = 0
for i in str:
	if i in l:
		pass
	else:
		l.append(i)
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alphabet = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']

def word_counter(word, item):
	result = 0
	for i in range(len(word)):
		if word[i] == item[0]:
			if word[i:i + len(item)] == item:
				result += 1
	return result
name = input()
result = 0
for i in range(len(alphabet)):
	if name.find(alphabet[i]) >= 0:
		result += 1
if result % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
string = str(input())
letters = {}
result = 0
for letter in string:
	if letter in letters:
		letters[letter] += 1
	else:
		letters[letter] = 1
		result += 1
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import re
a = [0 for i in range(26)]
s = input().lower()
for i in s:
	b = ord(i) - 97
	a[b] = 1
sum = 0
for i in a:
	sum += i
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
d = []
for i in range(len(a)):
	if a[i] not in d:
		d.append(a[i])
if len(d) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def boyandgirl(name):
	if len(set(name)) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
m = input()
boyandgirl(m)


username = input()
char = list(username)
arr = [0] * 26
count = 0
for i in range(0, len(char)):
	arr[ord(char[i]) - ord('a')] = arr[ord(char[i]) - ord('a')] + 1
	if arr[ord(char[i]) - ord('a')] == 1:
		count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
l = []

def addelement(a):
	if a not in l:
		l.append(a)
for i in string:
	addelement(i)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
used = {}
cont = 0
for i in name:
	try:
		used[i]
	except:
		used[i] = 1
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
line = list(input())
d = collections.Counter(line)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = set(input())
k = sorted(n)
l = len(k)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def self(a):
	a.sort()
	k = len(a)
	for i in range(1, len(a)):
		j = i - 1
		if a[j] == a[i]:
			k -= 1
	if k % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(self(list(input())))


n = list(map(str, input().strip()))
s = ''
mp = {i: 0 for i in n}
for i in range(len(n)):
	if mp[n[i]] == 0:
		s += str(n[i])
		mp[n[i]] = 1
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
uniq = []
for ch in word:
	if ch not in uniq:
		uniq += [ch]
if len(uniq) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
x = input()
e = 0
alphabets = string.ascii_lowercase
for i in alphabets:
	if i in x:
		e += 1
if e % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
freq = {}
for i in a:
	freq[i] = 1
if len(freq) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


print('CHAT WITH HER!' if not len(''.join(list(set(input())))) % 2 else 'IGNORE HIM!')


r = input()
g = []
for e in r:
	for b in g:
		if b == e:
			break
	else:
		g.append(e)
h = len(g)
h = h % 2
if h == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dis = set(name)
l = len(dis)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
s = ''
s += a[0]
condition = 0
for i in range(len(a)):
	for j in s:
		if a[i] == j:
			condition = 'found'
			break
		elif j == s[-1]:
			condition = 'not found'
	if condition == 'not found':
		s += a[i]
count = len(s)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
count = 0
s = ''.join(sorted(s))
for a in range(0, len(s) - 1):
	count = count if s[a] == s[a + 1] else count + 1
print('CHAT WITH HER!' if (count + 1) % 2 == 0 else 'IGNORE HIM!')


s = input()
st = [x for x in s]
t = len(set(st))
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
uniq = set()
amt = 0
for c in s:
	if c not in uniq:
		amt += 1
	uniq.add(c)
if amt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input().lower()
userr = list(''.join(set(user)))
if len(userr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input().strip()
alph = [0] * 26
for i in a:
	alph[ord(i) - ord('a')] = 1
if sum(alph) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


w = input()
s = set()
i = 1
while i <= len(w):
	s.add(w[i - 1])
	i += 1
k = len(s) + 1
if k % 2 == 0:
	print('IGNORE HIM!')
if k % 2 == 1:
	print('CHAT WITH HER!')


x = input()
x1 = []
x = list(x)
for v in x:
	if not v in x1:
		x1.append(v)
if len(x1) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = str(input())
answer = set()
for i in range(len(n)):
	answer.add(n[i])
if len(answer) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def which_sex(sex):
	female = 'CHAT WITH HER!'
	male = 'IGNORE HIM!'
	sex = set(sex)
	if len(sex) % 2 == 0:
		return female
	else:
		return male
sex = input()
print(which_sex(sex))


charList = []
nameIn = str(input())
for i in nameIn:
	if i not in charList:
		charList.append(i)
finalMessage = ''
if len(charList) % 2 == 0:
	finalMessage = 'CHAT WITH HER!'
else:
	finalMessage = 'IGNORE HIM!'
print(finalMessage)


a = input()
characters = ''
for x in a:
	if x in characters:
		pass
	else:
		characters = characters + x
if len(characters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print(len(set(input())) % 2 and 'IGNORE HIM!' or 'CHAT WITH HER!')


from collections import Counter
n = input()
a = Counter(n)
b = len(a)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
arr = list(set(a))
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for e in s:
	d[e] = 1
num = len(d)
if num % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
s = list(s)
s.sort()
n = len(s)
i = 0
while i < n - 1:
	if s[i] == s[i + 1]:
		del s[i]
		n = n - 1
	else:
		i = i + 1
m = len(s)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = str(input())
length = len(word)
a = word.count('a')
b = word.count('b')
c = word.count('c')
d = word.count('d')
e = word.count('e')
f = word.count('f')
g = word.count('g')
h = word.count('h')
i = word.count('i')
j = word.count('j')
k = word.count('k')
l = word.count('l')
m = word.count('m')
n = word.count('n')
o = word.count('o')
p = word.count('p')
q = word.count('q')
r = word.count('r')
s = word.count('s')
t = word.count('t')
u = word.count('u')
v = word.count('v')
w = word.count('w')
x = word.count('x')
y = word.count('y')
z = word.count('z')
if a == 0:
	a = 1
if b == 0:
	b = 1
if c == 0:
	c = 1
if d == 0:
	d = 1
if e == 0:
	e = 1
if f == 0:
	f = 1
if g == 0:
	g = 1
if h == 0:
	h = 1
if i == 0:
	i = 1
if j == 0:
	j = 1
if k == 0:
	k = 1
if l == 0:
	l = 1
if m == 0:
	m = 1
if n == 0:
	n = 1
if o == 0:
	o = 1
if p == 0:
	p = 1
if q == 0:
	q = 1
if r == 0:
	r = 1
if s == 0:
	s = 1
if t == 0:
	t = 1
if u == 0:
	u = 1
if v == 0:
	v = 1
if w == 0:
	w = 1
if x == 0:
	x = 1
if y == 0:
	y = 1
if z == 0:
	z = 1
borg = length - (a - 1) - (b - 1) - (c - 1) - (d - 1) - (e - 1) - (f - 1) - (g - 1) - (h - 1) - (i - 1) - (j - 1) - (k - 1) - (l - 1) - (m - 1) - (n - 1) - (o - 1) - (p - 1) - (q - 1) - (r - 1) - (s - 1) - (t - 1) - (u - 1) - (v - 1) - (w - 1) - (x - 1) - (y - 1) - (z - 1)
if borg % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
k = 0
for i in range(26):
	if chr(i + 96 + 1) in a:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
c = 0
n = len(str)
m = []
k = 0
for i in range(n):
	for j in range(i):
		if str[j] == str[i]:
			k = 1
	if k == 0:
		c += 1
	k = 0
print(['CHAT WITH HER!', 'IGNORE HIM!'][c % 2])


import sys
withFile = 0
if withFile == 1:
	fin = open('input.txt', 'r')
	fout = open('output.txt', 'w')

def getl():
	if withFile == 0:
		return input()
	else:
		return fin.readline()

def printl(s):
	if withFile == 0:
		print(s)
	else:
		fout.write(str(s))

def get_arr():
	x = getl().split(' ')
	if x[-1] == '':
		x = x[:-1]
	return list(map(int, x))
s = getl()
a = [0 for i in range(27)]
for c in s:
	a[ord(c) - ord('a')] += 1
c = 0
for i in a:
	if i > 0:
		c += 1
if c % 2 == 0:
	printl('CHAT WITH HER!')
else:
	printl('IGNORE HIM!')
if withFile == 1:
	fin.close()
	fout.close()


a = input()
c = 1
a = list(a)
a.sort()
a = ''.join(a)
for i in range(len(a) - 1):
	if a[i] < a[i + 1]:
		c += 1
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
count = 0
for x in range(0, len(username) - 1, 1):
	for y in range(x + 1, len(username), 1):
		if username[x] == username[y]:
			count = count + 1
			break
result = len(username) - count
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	A = ''
	A = str(input())
	l = len(A)
	count = 0
	for i in range(l):
		count += 1
		if A[i] in A[:i]:
			count -= 1
	if count % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except:
	pass


pushback = []
x = input()
count = 0
for i in range(len(x)):
	if x[i] in pushback:
		continue
	else:
		pushback.append(x[i])
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def find_gender():
	u_name = input().strip()
	return 'IGNORE HIM!' if len(set(u_name)) % 2 else 'CHAT WITH HER!'
print(find_gender())


W = input()
k = []
for i in W:
	if i in k:
		continue
	else:
		k.append(i)
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
string = set(string)
lenght = len(string)
if lenght % 2 == 0:
	print('CHAT WITH HER!')
elif lenght % 2 != 0:
	print('IGNORE HIM!')


username = input()
mylist = []
ln = 0

def genderfinder(name):
	for i in name:
		mylist.append(i)
genderfinder(username)
mylist = set(mylist)
ln = len(mylist)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
cnt = 0
dt = [0] * 128
for i in range(len(s)):
	if dt[ord(s[i])] == 1:
		continue
	else:
		dt[ord(s[i])] += 1
for i in range(len(dt)):
	cnt += dt[i]
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
m = 0
for i in range(97, 123):
	if chr(i) in name:
		m += 1
print('CHAT WITH HER!' if m % 2 == 0 else 'IGNORE HIM!')


name = input()
new = set(name)
length = len(new)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
name = word.lower()
name_2 = ''
for i in range(len(name)):
	if name[i] in name_2:
		continue
	else:
		name_2 = name_2 + name[i]
if len(name_2) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
sen = []
for se in s:
	sen.append(se)
if len(set(sen)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = set()
cant = 0
for c in s:
	if c not in l:
		cant += 1
		l.add(c)
if cant % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ll = []
for x in range(0, 26):
	ll.append(0)
a = input()
a = list(a)
for x in a:
	ll[ord(x.lower()) - 97] = 1
t = 0
for x in ll:
	t = t + x
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
l = []
for ch in string:
	if ch not in l:
		l.append(ch)
leng = len(l)
if leng % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


texto = input()
texto = list(texto)
sal = []
for x in texto:
	if x not in sal:
		sal.append(x)
if len(sal) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = len(x)
z = []
counter = 0
for i in x:
	if i in z:
		counter += 1
	else:
		z.append(i)
y -= counter
if y % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
chars = []
distinct = 0
for c in name:
	if c not in chars:
		distinct += 1
		chars.append(c)
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def identify(a):
	b = ''.join(set(a))
	if len(b) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
userName = input()
identify(userName)


uname = input()
lst = list()
for i in uname:
	if i in lst:
		continue
	lst.append(i)
x = len(lst)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
un = []
for char in x[:]:
	if char not in un:
		un.append(char)
y = len(un)
if y % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def function(s):
	if len(list(set(list(s)))) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
function(s)


str1 = input()
str1 = list(str1)
str1.sort()
count = 1
k = str1[0]
for i in str1:
	if i != k:
		count += 1
		k = i
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


characters = input()
unique_characters = []
for chars in characters:
	if chars not in unique_characters:
		unique_characters.append(chars)
if len(unique_characters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = {}
n = input()
for i in range(len(n)):
	l[n[i]] = n.count(n[i])
for i in range(len(n)):
	if l[n[i]] >= 2:
		l[n[i]] = 1
	k = sum(l.values())
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


z = input()
a = set()
for i in z:
	if i not in a:
		a.add(i)
n = len(a)
if n % 2 == 0:
	print('CHAT WITH HER!')
elif n % 2 == 1:
	print('IGNORE HIM!')


import math
a = input()
p = list(a)
liste = []
p.sort()
liste2 = []
for i in range(len(p)):
	if p[i - 1] == p[i]:
		liste2.append(1)
if (len(p) - math.fsum(liste2)) % 2 == 0:
	print('CHAT WITH HER!')
elif (len(p) - math.fsum(liste2)) % 2 == 1:
	print('IGNORE HIM!')


str1 = input()
str2 = ''.join(dict.fromkeys(str1))
if len(str2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
helper = []
for character in name:
	if character not in helper:
		helper.append(character)
if len(helper) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


N = input()
lst = list(N)
x = []
x = set(lst)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = len(set(str(input()).lower()))
if string % 2 == 0:
	print('CHAT WITH HER!')
elif string % 2 != 0:
	print('IGNORE HIM!')


def boyOrGirl(m):
	x = []
	for i in range(len(m)):
		x.append(m[i])
	t = set(x)
	print('CHAT WITH HER!') if len(t) % 2 == 0 else print('IGNORE HIM!')
string = input()
boyOrGirl(string)


str_input = str(input())
if len(''.join(set(str_input))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string_input = input()
count = 0
temp = []
for i in string_input:
	if i not in temp:
		count = count + 1
		temp.append(i)
words = len(temp)
if words % 2 == 0:
	print('CHAT WITH HER!')
elif words % 2 != 0:
	print('IGNORE HIM!')


n = list(input())
a = len(n)
for i in range(0, a):
	k = i + 1
	while k < a:
		if n[k] != n[i]:
			k += 1
		else:
			del n[k]
			a -= 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	username = input()
	distinct_chars = set(username)
	if len(distinct_chars) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


def recognize(myStr):
	if len(myStr) <= 1:
		print('IGNORE HIM!')
		return
	distinct_char = [0] * 256
	count_dist = 0
	for c in range(len(myStr)):
		h = ord(myStr[c])
		if distinct_char[h] == 1:
			pass
		else:
			distinct_char[h] = 1
			count_dist += 1
	if count_dist % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	return
value = str(input())
recognize(value)


li = list(input())
se = set(li)
li = list(se)
le = len(li)
if le % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for i in a:
	if i in b:
		pass
	else:
		b.append(i)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
charArr = []
counter = 0
for char in username:
	if char in charArr:
		counter += 1
	else:
		charArr.append(char)
if len(charArr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


d = input()
all_freq = {}
count = 0
for i in d:
	if i in all_freq:
		all_freq[i] += 1
	else:
		all_freq[i] = 1
for key in all_freq:
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
s = set(stdin.readline())
if len(s) % 2 == 0:
	stdout.write('IGNORE HIM!')
else:
	stdout.write('CHAT WITH HER!')


x = input()
distChar = 0
mem = ''
loopCount = 1
for i in x:
	if mem.find(i) == -1:
		distChar += 1
	mem = i + mem
	if loopCount == len(x):
		if distChar % 2 != 0:
			print('IGNORE HIM!')
		else:
			print('CHAT WITH HER!')
		break
	loopCount += 1


name = input()
letters = 'abcdefghijklmnopqrstuvwxyz'
count = len([x for x in letters if name.count(x) != 0])
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def chat(str):
	distinct = ''
	for i in str:
		if i not in distinct:
			distinct = distinct + i
	if len(distinct) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
inp = input()
x = chat(inp)
print(x)


import sys
s = input()
kind_key = set(s)
if len(kind_key) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
z = []
y = []
for i in range(len(x)):
	z.append(x[i])
for i in z:
	if i not in y:
		y.append(i)
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
elif len(y) != 0:
	print('IGNORE HIM!')


import sys
import math
import collections
from collections import deque
from functools import reduce
from sys import stdin, stdout, setrecursionlimit
setrecursionlimit(2 ** 20)

def factors(n):
	return list(set(reduce(list.__add__, ([i, n // i] for i in range(1, int(n ** 0.5) + 1) if n % i == 0))))
s = str(stdin.readline().strip('\n'))
d = {}
for i in s:
	if i not in d:
		d[i] = 0
	d[i] += 1
x = len(list(d.keys()))
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
mapa = {}
cont = len(name)
for i in name:
	if i not in mapa.keys():
		mapa[i] = 1
	else:
		cont -= 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
x = list()
for w in inp:
	if w == ' ':
		pass
	elif w in x:
		pass
	else:
		x.append(w)
l = len(x)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inputstring = str(input())
length = len(inputstring)
listofchar = []
for char in inputstring:
	if char not in listofchar:
		listofchar.append(char)
a = len(listofchar)
if a % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
str = sorted(n)
x = len(str)
c = 0
for e in range(0, x - 1):
	if e >= 0:
		if str[c] == str[c + 1]:
			del str[c]
			c -= 1
		c += 1
if len(str) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


listt = list(input())
sum = 0
stroka = ''
for i in listt:
	if listt.count(i) == 1:
		sum += 1
	else:
		if i not in stroka:
			sum += 1
		stroka += i
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
SL = set(sorted(s))
L = len(SL)
if L % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


stri = input()
b = []
b = list(set(stri))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input()
p = ''
for i in N:
	if i not in p:
		p += i
	else:
		continue
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
alphabet = 'abcdefghijklmnopqrstuvwxyz'
counter = 0
for i in alphabet:
	if i in n:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input('')
listStr1 = list(str1)
listA = []
u = 0
for i in listStr1:
	if i not in listA:
		listA += i
for i in listA:
	u += 1
if u % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


while True:
	try:
		ch = input()
		if len(ch) <= 100 and ch == ch.lower() and ch.isalpha():
			break
	except:
		continue
L = []
for i in ch:
	L.append(i)
s = set(L)
x = len(s)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
d = {}
for char in text:
	if char in d:
		d[char] += 1
	else:
		d[char] = 1
if len(d.keys()) == 0:
	print('IGNORE HIM!')
elif len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = {}
for i in range(len(n)):
	d[n[i]] = 0
c = len(d)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input().strip()
nl = []
for i in n:
	nl.append(i)
ns = set(nl)
if len(ns) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = []
for i in x:
	y.append(i)
p = set(y)
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


in0 = input()
in1 = len(in0)
for x in in0:
	if in0.count(x) > 1:
		in0 = in0.replace(x, '', 1)
		in1 -= 1
if in1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = set(s)
s1 = 'CHAT WITH HER!'
s2 = 'IGNORE HIM!'
if len(a) % 2 == 1:
	print(s2)
else:
	print(s1)


characters = input()
toSet = set(characters)
if len(toSet) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = len(n)
c = []
a = []
for i in range(l):
	c.insert(i, n[i])
for i in range(l):
	if n[i] not in a:
		a.insert(i, n[i])
s = len(a)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
answer = ''
while name != '':
	answer = answer + name[0]
	name = name.replace(name[0], '')
if len(answer) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def distinct(user):
	distinct_char = ''
	for char in user:
		if char not in distinct_char:
			distinct_char += char
	return distinct_char

def boy_girl(user):
	return 'CHAT WITH HER!' if len(distinct(user)) % 2 == 0 else 'IGNORE HIM!'
print(boy_girl(input()))


a = input()
p = set(a)
q = len(p)
if q % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
d = []
de = 0
for i in s:
	if not i in d:
		d.append(i)
		de += 1
if de % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name1 = name.lower()
count = 0
A = []
for i in name1:
	if i not in A:
		A.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
unique = len(''.join(set(name)))
if unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Main():
	cnt = len(set(input()))
	print('IGNORE HIM!' if cnt & 1 else 'CHAT WITH HER!')
Main()


s = input()
l = list(s)
c = []
for i in l:
	if i in c:
		continue
	else:
		c.append(i)
llen = len(c)
if llen % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
s = ''
k = 0
for letter in t:
	if letter not in s:
		s += letter
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


count = {}
value = 0
username = input()
for i in username:
	if i not in count:
		count[i] = 0
		value += 1
if value % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
b = set(name)
k = len(b)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = 1
st = s[0]
for l in s:
	if l not in st:
		st = st + l
		c = c + 1
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


h = input()
k = []
k.extend(h)
l = len(set(k))
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
nameList = []
for letter in name:
	nameList.append(letter)
if len(set(nameList)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
v = []
for letter in s:
	if letter not in v:
		v.append(letter)
if len(v) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


namelist = [x for x in input()]
newlist = set(namelist)
num = len(newlist)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def prop(l):
	list_b = []
	for x in l:
		if x not in list_b:
			list_b.append(x)
	return list_b
a = input()
list_a = list(a)
list_a.sort()
b = prop(list_a)
if len(b) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nickname = input()
was = []
for i in nickname:
	if i in was:
		pass
	else:
		was.append(i)
if len(was) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
n = len(s)
s1 = sorted(s)
c = 1
for i in range(n - 1):
	if s1[i] != s1[i + 1]:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stra = input()
ans = 0
for i in range(ord('a'), ord('z') + 1):
	ii = chr(i)
	if ii in stra:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
letter = 0
for i in range(97, 123):
	if chr(i) in s:
		letter = letter + 1
if letter % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
chr_counter = 0
chr_has_appears = [False for i in range(26)]
string_counter = 0
while chr_counter < 26 and string_counter < len(s):
	if not chr_has_appears[ord(s[string_counter]) - 97]:
		chr_has_appears[ord(s[string_counter]) - 97] = True
		chr_counter += 1
	string_counter += 1
if chr_counter % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
a = set((i for i in s))
if len(a) & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = dict()
for i in s:
	if i in d.keys():
		d[i] += 1
	else:
		d[i] = 1
c = 0
for (i, j) in d.items():
	c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
n = input()
counter = collections.Counter(n)
if len(counter) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
B = []
for i in A:
	B.append(i)
B = set(B)
n = len(B)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
s = input()
s = set(s)
t = len(s)
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


_1 = '236a'
_2 = '339a'
_3 = '266a'
_4 = '96a'
_5 = '236a'
l = list(str(input()))
if len(set(l)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nam = input()
cou = len(set(list(nam)))
if cou % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
list(string)
setstr = set(string)
if len(setstr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
n = len(word)
a = set()
for i in range(0, n):
	a.add(word[i])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = 0
l = []
d = 0
for i in s:
	if s.count(i) == 1:
		c += 1
	elif i not in l:
		l.append(i)
if (c + len(l)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
l = list(string)
lnew = set(l)
n = len(lnew)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


d = str(input())
g = ''.join(set(d))
h = len(g)
if h % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p = []
l = input()
for y in l:
	if y not in p:
		p.append(y)
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print(['CHAT WITH HER!', 'IGNORE HIM!'][len(set(str(input()))) % 2 == 1])


l = []
q = str(input())
i = 0
k = 0
c = 0
for i in range(len(q)):
	if q[i] in l:
		k = k + 1
	else:
		l.append(q[i])
c = len(q) - k
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
usedchars = []
count = 0
for char in username:
	if not usedchars.__contains__(char):
		count += 1
		usedchars.append(char)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
a = str(input())
b = set(a)
x = len(b)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
qty = [0] * 26
distinct = 0
for i in range(len(word)):
	if qty[ord(word[i]) - 97] != 1:
		qty[ord(word[i]) - 97] = 1
		distinct += 1
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ds = dict()
for i in s:
	if i not in ds:
		ds[i] = 0
	ds[i] += 1
if len(ds) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


k = input()
if len(set(k)) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


output = []
user = input().lower()
while len(user) < 100:
	for i in user:
		if i not in output:
			output.append(i)
		else:
			continue
	if len(output) % 2 == 0:
		print('CHAT WITH HER!')
		break
	elif len(output) % 2 == 1:
		print('IGNORE HIM!')
		break


username = list(input())
alist = []
for letter in username:
	if letter not in alist:
		alist.append(letter)
if len(alist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	user = input()
	letters = []
	for i in user:
		detr = 0
		for l in letters:
			if i == l:
				detr = -1
				break
		if detr == 0:
			letters.append(i)
	if len(letters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


import sys
name = str(input())
hashlist = {}
for c in name:
	if c in hashlist.keys():
		hashlist[c] += 1
	else:
		hashlist[c] = 1
if len(hashlist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


distinct = []
for character in input():
	if character.lower() not in distinct:
		distinct.append(character)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
ln = 0
for i in a:
	if i in b:
		continue
	else:
		ln += 1
		b.append(i)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
chrlist = []
for i in inp:
	if i not in chrlist:
		chrlist.append(i)

def whattype(x):
	if len(x) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(whattype(chrlist))


f = str(input())
g = ''
for i in range(len(f)):
	if f[i] not in g:
		g = g + f[i]
if len(g) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = [x for x in input()]
newname = set(name)
length = len(newname)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	l = [x for x in input()]
	l = set(l)
	if len(l) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except:
	pass


ch = input()
from re import *
l = findall('[a-zA-Z]', ch)
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(list(set(l))) % 2 == 1])


def main():
	i = input()
	l = list(i)
	va = [l[0]]
	a = 0
	for o in range(len(l)):
		if l[o] not in va:
			va.append(l[o])
	a = len(va)
	if a % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


a = list(input())
b = []
for i in range(len(a)):
	if i == 0:
		b.append(a[0])
	elif (a[i] in b) == False:
		b.append(a[i])
if len(b) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import string

def verifyOccurence(userName, auxOccurrence):
	for i in range(len(userName)):
		if (userName[i] in auxOccurrence) == False:
			auxOccurrence.append(userName[i])
userName = input()
if len(userName) <= 100:
	auxOccurrence = []
	verifyOccurence(userName, auxOccurrence)
	if len(auxOccurrence) % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
else:
	pass


letras_unicas = []
nombre = input()
for letra in nombre:
	if not letra in letras_unicas:
		letras_unicas.append(letra)
if len(letras_unicas) % 2 == 0:
	print('CHAT WITH HER!\n')
else:
	print('IGNORE HIM!\n')


a = input()
s = []
for i in range(len(a)):
	c = 0
	for j in range(i):
		if a[i] != a[j] and i != j:
			c = c + 1
		if a[i] == a[j]:
			continue
	if c == i:
		s.append(a[i])
d = len(s)
if d % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
username = Counter(input())
if len(username) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
l = []
for i in range(len(a)):
	l.append(a[i])
l = set(l)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
if len(l) % 2 != 0:
	print('IGNORE HIM!')


a = input()
temp = []
count = 0
for i in a:
	if i not in temp:
		count += 1
		temp.append(i)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


text = input()
occ = {}
count = 0
for i in text:
	if i in occ:
		count = count
	else:
		occ[i] = True
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
list1 = []
for char in str1:
	if char not in list1:
		list1.append(char)
if len(list1) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = str(input())
disChar = []
lenChar = 0
for i in range(0, len(username)):
	if username[i] not in disChar:
		disChar.append(username[i])
		lenChar += 1
if lenChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
array = [0] * 256
answer = 0
for i in range(len(n)):
	array[ord(n[i])] = 1
for i in range(256):
	answer += array[i]
if answer % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
username = list(username)
uniq = []
for i in username:
	if i not in uniq:
		uniq.append(i)
		pass
x = len(uniq)
if x % 2 == 0:
	print('CHAT WITH HER!')
	pass
else:
	print('IGNORE HIM!')
	pass


w = input('')
x = list(w)
l = []
for i in range(0, len(x)):
	l.append(x[i])
	if l.count(x[i]) > 1:
		l.remove(x[i])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Text = input().strip()
Text = ''.join(set(Text))
Num = len(Text)
if Num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = [0 for i in range(len(s))]
l = len(s)
k = 0
for i in range(len(s)):
	s_1 = s[i]
	for j in range(i, len(s)):
		if s[j] == s_1:
			c[i] = c[i] + 1
	if c[i] == 1:
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


names = input()
letters = []
for i in range(0, len(names)):
	if letters.count(names[i]) == 0:
		letters.append(names[i])
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
dic = {}
for s in str:
	dic[s] = 1
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def get_char(name: str):
	i = j = 0
	while i < len(name):
		j = i + 1
		while j < len(name):
			if name[j] == name[i]:
				if j != len(name) - 1:
					name = name[:j] + name[j + 1:]
				else:
					name = name[:j]
				j -= 1
			j += 1
		i += 1
	if len(name) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
name1: str = input()
print(get_char(name1))


nick = input()
mylist = list(dict.fromkeys(nick))
if len(mylist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = []
for i in s:
	if i not in d:
		d.append(i)
	else:
		continue
g = len(d)
if g % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nombre = input()
letras = []
contador = 0
for i in nombre:
	if not i in letras:
		contador += 1
		letras.append(i)
if contador % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
user_name = Counter(list(input()))
if len(user_name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = ['CHAT WITH HER!', 'IGNORE HIM!']
s = set(input())
print(l[len(s) % 2])


name = input()
new = ''.join(set(name))
gender = len(new)
if gender % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
con = []
for i in st:
	if i not in con:
		con.append(i)
if len(con) % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nome = str(input())
aux = []
for i in nome:
	if i not in aux:
		aux.append(i)
n = len(aux)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
characters = []
for i in name:
	if i not in characters:
		characters.append(i)
tmp = len(characters) / 2
if int(tmp) == tmp:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


init = input()
count = {}
odd = 0
for i in init:
	if i in count:
		count[i] += 1
	else:
		count[i] = 1
temp = set(count)
if len(temp) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
n = len(s)
count = 0
for x in range(n):
	for y in range(x + 1, n):
		if s[x] == s[y]:
			count += 1
			break
a = n - count
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
u = []
for c in s:
	if c not in u:
		u.append(c)
if len(u) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def checkgender(mystr):
	cntar = [0] * 26
	for ch in mystr:
		idx = ord(ch) - ord('a')
		cntar[idx] += 1
	cnt = 0
	for x in cntar:
		if x != 0:
			cnt += 1
	if int(cnt % 2) == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
mystr = input()
checkgender(mystr)


name = input().lower()
alfabet = [0] * 26
count = 0
for i in range(len(name)):
	temp = name.count(name[i])
	alfabet[ord(name[i]) - 97] = temp
for i in range(len(alfabet)):
	if alfabet[i] == 1:
		count += 1
	elif alfabet[i] == 0:
		count += 0
	elif alfabet[i] > 1:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
s = input()
s = list(s)
length = len(s)
l = []
for x in range(length):
	k = s[0]
	s.pop(0)
	if k in l:
		oof = 1
	else:
		l.append(k)
length = len(l)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
cnt = [0] * 26
for c in a:
	cnt[ord(c) - ord('a')] += 1
ans = 0
for i in range(26):
	if cnt[i] > 0:
		ans += 1
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
lst = []
lst1 = []
for i in range(len(s)):
	lst.append(s[i])
a = set(lst)
l = len(a)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ug = input()
cnt = 0
while ug != '':
	cnt += 1
	ug = ug.replace(ug[0], '')
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
c = 0
j = 0
for i in st[:-1]:
	j += 1
	if i in st[j:]:
		c += 1
uni = len(st) - c
if uni % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
a = sorted(a, reverse=True)
s = len(a)
i = 0
for i in range(len(a)):
	if a[i - 1] == a[i]:
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
al = []
for ch in a:
	al.append(ch)
alpha = set(al)
l = len(alpha)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
d = {}
for letter in string:
	d[letter] = d.get(letter, 0) + 1
c = len(d.keys())
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
str = 'abcdefghijklmnopqrstuvwxyz'
ans = 0
for i in range(26):
	if str[i] in s:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inputs = input()
dist = ''
for i in range(len(inputs)):
	char = inputs[i]
	if char not in dist:
		dist = dist + char
if len(dist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
wynik = Counter(input())
if len(wynik) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
line = list(name)
test = []
for i in line:
	if i not in test:
		test.append(i)
gender = len(test)
if gender % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def split(word):
	return [char for char in word]

def CheckGender(name):
	distinct_caracters = dict.fromkeys(split(name))
	print('CHAT WITH HER!') if len(distinct_caracters) % 2 == 0 else print('IGNORE HIM!')
name = input()
CheckGender(name)


s = input()
lst = []
ans = 1
for i in range(len(s)):
	lst.append(s[i])
lst.sort()
for i in range(len(s)):
	if i == 0:
		continue
	if lst[i] != lst[i - 1]:
		ans += 1
if ans % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
if len(string) <= 100:
	dic_s = {}
	for i in string:
		if i not in dic_s:
			dic_s[i] = 1
	if len(dic_s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


s = input()
list_s = list(s)
z = ''
count = 0
for i in range(0, len(list_s) - 1):
	list_s.sort()
	if list_s[i] != list_s[i + 1]:
		z += list_s[i]
	else:
		count += 1
if (len(z) + 1) % 2 != 0:
	print('IGNORE HIM!')
elif (len(z) + 1) % 2 == 0:
	print('CHAT WITH HER!')


username = input()
from collections import defaultdict
freq = defaultdict(lambda : 0)
for char in username:
	freq[char] += 1
count = len(freq.keys())
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


keyboard = input()
unique = set(keyboard)
print('CHAT WITH HER!' if len(unique) % 2 == 0 else 'IGNORE HIM!')


name = input()
dict_ = {_: name.count(_) for _ in name}
if len(dict_) & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
n = len(a)
b = []
for i in range(n):
	if a[i] not in b:
		b.append(a[i])
count = len(b)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
string_L = list(string)
my_dict = dict(((i, string_L.count(i)) for i in string_L))
if len(my_dict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
count = 0
newname = ''
for i in x:
	if i not in str(newname):
		count += 1
		newname += i
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
count = 0
cont_a = []
for i in k:
	if i not in cont_a:
		cont_a.append(i)
		count += 1
res = count % 2
if res:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


__author__ = 'runekri3'
name = input()
chars = set(list(name))
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = set(input())
print({True: 'CHAT WITH HER!', False: 'IGNORE HIM!'}[len(word) % 2 == 0])


str = input()
ls = []
i = 0
f = 0
while i < len(str):
	if str[i] in ls:
		f = 0
	else:
		ls.append(str[i])
		f = 1
	i += 1
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


while True:
	ch = input('')
	if len(ch) >= 1 and len(ch) <= 100:
		break
result = ''.join(set(ch))
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
anzahlAnChars = 0
charsUsed = []
for i in range(len(inp)):
	charUsed = False
	for j in range(len(charsUsed)):
		if inp[i] == charsUsed[j]:
			charUsed = True
			break
	if charUsed == False:
		charsUsed.append(inp[i])
		anzahlAnChars += 1
if anzahlAnChars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = list(input())
lis = []
j = 0
for i in range(0, len(m)):
	p = m.pop(i)
	if p in m:
		m.insert(i, '0')
		j = j + 1
	else:
		m.insert(i, p)
if (len(m) - j) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


answer = input()
answers = sorted(answer)
first_number = len(answers)
string = ''
y = 0
c = 0
while first_number - 1 > y:
	if answers[y] == answers[y + 1]:
		c += 1
		y += 1
	elif answers[y] != answers[y + 1]:
		y += 1
if (first_number - c) % 2 == 0:
	print('CHAT WITH HER!')
elif (first_number - c) % 2 != 0:
	print('IGNORE HIM!')


w = input()
dup = list(set(w))
if len(dup) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
dist_cha = set((x for x in s))
if len(dist_cha) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = str(input())
userlist = list(user)
empty = []
for i in userlist:
	if i in empty:
		continue
	else:
		empty.append(i)
for i in empty:
	lc = i.lower()
	if i == lc:
		continue
	else:
		empty.remove(i)
length = len(empty)
if length % 2 == 1:
	print('IGNORE HIM!')
if length % 2 == 0:
	print('CHAT WITH HER!')


def is_girl(str):
	li = []
	for ch in str:
		if ch not in li:
			li.append(ch)
	size = len(li)
	if size % 2 == 0:
		return True
	return False
str = input()
if is_girl(str):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
m = {}
m = m.fromkeys(s, 0)
for i in range(len(s)):
	m[s[i]] += 1
t = len(m.keys())
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
letter_dict = dict()
for character in username:
	letter_dict[character] = True
print('CHAT WITH HER!' if len(letter_dict) % 2 == 0 else 'IGNORE HIM!')


x = input()
letters = []
for i in range(len(x)):
	counter = 0
	for j in range(len(letters)):
		if x[i] == letters[j]:
			counter += 1
	if counter == 0:
		letters.append(x[i])
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Boy():
	s = input().lower()
	l = len(s)
	k = s[0]
	i = 0
	while i < l:
		flag = 1
		if len(k) == 0:
			k = s[i]
		else:
			j = 0
			while j < len(k) and flag != 0:
				if s[i] != k[j]:
					flag = flag + 1
				else:
					flag = 0
				j = j + 1
		if flag != 0:
			k = k + s[i]
		i = i + 1
	r = len(k)
	if r % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
Boy()


n = list(input())
m = []
for i in n:
	if i in m:
		pass
	else:
		m += [i]
if len(m) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


bog = set(input())
yon = len(bog) % 2
if yon:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def boygirl(s):
	if len(set(s)) % 2 == 1:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
s = input()
print(boygirl(s))


def main():
	string = input()
	unique_chars = len(set(string))
	if unique_chars % 2 == 1:
		return 'male'
	else:
		return 'female'
if main() == 'female':
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


while True:
	try:
		x = input()
	except:
		break
	k = {}
	for i in x:
		if k.get(i, 0) == 0:
			k[i] = 1
	if len(k.keys()) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


found = [False] * 26
name = input()
num = 0
for i in range(len(name)):
	if found[ord(name[i]) - ord('a')] == False:
		found[ord(name[i]) - ord('a')] = True
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import io
import os
ans = 0
w = sorted(input())
for i in range(len(w) - 1):
	if w[i] == w[i + 1]:
		ans += 1
print('CHAT WITH HER!') if (len(w) - ans) % 2 == 0 else print('IGNORE HIM!')


user = str(input())
let = []
L = len(user)
for x in range(L):
	let = let + [user[x]]
x = 0
while x in range(L):
	if let[x] in let[x + 1:]:
		let.remove(let[x])
		L = L - 1
		x = x - 1
	x = x + 1
if len(let) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
seen = set()
for c in x:
	seen.add(c)
ans = len(seen)
print('CHAT WITH HER!') if not ans % 2 else print('IGNORE HIM!')


name = input()
previous = []
count = 0
for x in name:
	if x not in previous:
		previous.append(x)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
lst = list(st)
s = set(lst)
c = len(s)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
set_string = set(string)
if len(set_string) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import string
str = input()
num = 0
for letter in string.ascii_letters:
	if str.count(letter) >= 1:
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
g = {*()}
for i in range(len(a)):
	g.add(a[i])
if len(g) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ans = 1
a = list(range(125))
for i in range(len(s)):
	a[ord(s[i])] += 1
for i in range(125):
	if a[i] != i:
		ans += 1
if ans % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
l = []
for i in name:
	if i in l:
		pass
	else:
		l.append(i)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
letters = [letter for letter in username]
letters = set(letters)
letters = list(letters)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


result = []
name = input()
for s in name:
	while s not in result:
		result.append(s)
if len(result) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_string = input()
temp = {}
for x in input_string:
	temp[x] = temp.get(x, 1)
if len(temp) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
alpha = string.ascii_lowercase
line = str(input()).lower()
score = 0
for ch in alpha:
	if ch in line:
		score += 1
if score % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
b = len(n)
a = sorted(n)
counter = 0
last = ''
for x in a:
	if last == x:
		counter += 1
	else:
		last = x
c = b - counter
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
m = 0
j = 0
for i in range(len(name)):
	while name[j] != name[i] and j < i:
		j = j + 1
	if i == j:
		m = m + 1
	j = 0
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
c = 0
s = set(a)
l = list(s)
for i in l:
	for j in a:
		if i == j:
			c += 1
	c -= 1
if (len(a) - c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
vartual = ''
for ch in name:
	if not ch in vartual:
		vartual += ch
if len(vartual) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Name = input()
L = list(Name)
M = []
m = 0
for i in range(len(L)):
	if L[i] not in M:
		m += 1
		M.append(L[i])
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
a1 = set(a)
l1 = len(a1)
if l1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p = input()
h = 0
k = 'abcdefghijklmnopqrstuvwxyz'
k = list(k)
for i in k:
	if i in p:
		h = h + 1
if h % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
B = []
for n in A:
	if n in B:
		pass
	else:
		B.append(n)
N = len(B)
if N % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
char_set = set()
for char in name:
	char_set.add(char)
if len(char_set) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
ls = list()
for i in a:
	ls.append(i)
ls = set(ls)
if len(ls) / 2 == int(len(ls) / 2):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
n = len(username)
i = 0
ls = []
while i < n:
	letter = username[i]
	if not letter in ls:
		ls.append(letter)
	i = i + 1
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
first = ord('a')
counters = [0 for _ in range(26)]
result = 0
for symbol in name:
	index = ord(symbol) - first
	if counters[index] == 0:
		counters[index] = 1
		result += 1
print('CHAT WITH HER!' if result % 2 == 0 else 'IGNORE HIM!')


import sys

def gets():
	return sys.stdin.readline().strip()

def get():
	return int(sys.stdin.readline().strip())

def geti():
	return map(int, sys.stdin.readline().strip().split())

def getli():
	return list(map(int, sys.stdin.readline().strip().split()))
s = gets()
a = set(list(s))
if len(a) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
unic_char = set()
for ch in string:
	unic_char.add(ch)
if len(unic_char) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
distinct = []
for l in word:
	if l in distinct:
		continue
	else:
		distinct.append(l)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
a = [char for char in n]
s = set(a)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
rec = dict()
count = 0
for i in name:
	rec[i] = rec.get(i, 0) + 1
for i in rec.keys():
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
p = input()
d = len(p)
arr = []
for i in range(0, d, 1):
	a = str(p[i])
	if a not in arr:
		arr.append(p[i])
l = len(arr)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
l = []
for _ in word:
	if _ not in l:
		l.append(_)
if len(l) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
word = input()
c = Counter(word)
ans = 0
for i in c:
	ans += 1
if ans % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
sum = 0
l = []
for i in range(len(a)):
	if a[i] not in l:
		sum = sum + 1
	l.append(a[i])
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
name.sort()
i = 1
while i < len(name):
	if name[i] == name[i - 1]:
		name.pop(i)
	else:
		i += 1
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter as count
string = str(input())
if len(count(string)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter

def solve():
	name = input()
	c = Counter(name)
	if len(c) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	return

def main():
	solve()
main()


s = input()
r = []
nb = 0
for i in range(len(s)):
	if s[i] not in r:
		nb += 1
		r.append(s[i])
if nb % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def check():
	tmp = []
	str_input = input()
	for s in str_input:
		tmp.append(s)
	tmp = set(tmp)
	if len(tmp) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
check()


from collections import OrderedDict
s = input()
s2 = s
s2 = s2[1:]
s = ''.join(set(s))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import defaultdict
s = input()
d = defaultdict(lambda : 0)
for i in s:
	d[i] += 1
if len(d.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stdin = input()
chars = list(stdin)
distinct = set()
for char in chars:
	distinct.add(char)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def string_to_list(string):
	string_to_list = []
	character_length = len(string)
	for i in range(0, int(character_length)):
		string_to_list.append(string[i])
	return string_to_list
username = input()
username_list = string_to_list(username)
username_list = list(set(username_list))
if len(username_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input('')
char_list = list()
for i in username:
	char_list.append(i)
char_dict = dict()
for i in char_list:
	char_dict[i] = char_dict.get(i, 0) + 1
distinct = len(char_dict)
if distinct % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
l = list(map(ord, n))
l1 = list(set(l))
if len(l1) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
usedAlpha = []
count = 0
for char in name:
	if char in usedAlpha:
		continue
	else:
		usedAlpha.append(char)
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input()
letters = []
count = 0
for letter in user:
	if letter not in letters:
		letters.append(letter)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
hmap = {}
for char in str:
	if char in hmap:
		hmap[char] = hmap[char] + 1
	else:
		hmap[char] = 1
if len(hmap) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def function():
	word = input()
	distinct_letters = ''.join(set(word))
	length = len(distinct_letters)
	answer = ''
	if length % 2 == 0:
		answer = 'CHAT WITH HER!'
	else:
		answer = 'IGNORE HIM!'
	print(answer)
function()


x = str(input())
y = ''
count = 0
for letter in x:
	if letter in y:
		continue
	else:
		count += 1
		y += letter
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
s = set()
for letter in string:
	s.add(letter)
if len(s) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = str(input(''))
list = []
c = 0
for items in string:
	if not items in list:
		list.insert(len(list), items)
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!', end='')
elif c % 2 != 0:
	print('IGNORE HIM!', end='')


st = input()
lst = []
answ = 'IGNORE HIM!'
for i in st:
	if i not in lst:
		lst.append(i)
if len(lst) % 2 == 0:
	answ = 'CHAT WITH HER!'
print(answ)


s = input()
dChars = 0
for letter in s:
	if s.count(letter) > 1:
		s = s.replace(letter, '')
		dChars += 1
for letter in s:
	dChars += 1
if dChars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	s = input()
	l = list(s)
	s1 = set(l)
	if len(s1) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except EOFError:
	pass


UserName = input()
output = []
for x in UserName:
	if x not in output:
		output.append(x)
if len(output) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


female = 'CHAT WITH HER!'
male = 'IGNORE HIM!'
name = input()
uniqueChar = []
for i in name:
	if not i in uniqueChar:
		uniqueChar.append(i)
if len(uniqueChar) % 2 == 0:
	print(end=female)
else:
	print(end=male)


s = input()
l = [char for char in s]
m = []
for i in l:
	if i not in m:
		m.append(i)
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick_name = input()
number = len(set(nick_name))
if number % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def word():
	for i in range(len(name)):
		if name[i] not in words:
			words.append(name[i])
words = []
name = str(input())
name.lower()
word()
if len(words) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
x = sorted(x)
i = 0
c = 0
f = False
while i < len(x) - 1:
	if x[i] != x[i + 1]:
		c += 1
	elif f:
		c += 1
		f = False
	i += 1
if i < len(x):
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import os
name = input().rstrip()
char_dict = {}
dist_char = 0
for ch in name:
	try:
		a = char_dict[ch]
	except KeyError:
		char_dict[ch] = 1
		dist_char += 1
if dist_char % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin

def readInts():
	return map(int, stdin.readline().strip().split())

def solve(s):
	seen = set()
	for c in s:
		seen.add(c)
	return len(seen) % 2 == 0

def run():
	s = stdin.readline().strip()
	if solve(s):
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
run()


def A236(name):
	d = {}
	for i in name:
		d[i] = 1
	n = len(d.keys())
	if n % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
name_input = input()
A236(name_input)


n = input()
a = 0
list = []
for i in n:
	if i not in list:
		list.append(i)
		a = a + 1
	else:
		a = a
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solution(s):
	li = list(s)
	se = set(li)
	if len(se) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
s = input()
solution(s)


n = input().lower()
a = []
d = []
if 1 <= len(n) <= 100:
	for i in n:
		a.append(i)
	for b in a:
		if b not in d:
			d.append(b)
	a = len(d)
	if a % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
else:
	print('too long')


n = input()
k = len(n)
a = 'abcdefghijklmnopqrstuvwxyz'
a = list(n)
l = []
for i in range(k):
	for j in range(i + 1, k):
		if a[i] == a[j]:
			a[j] = 0
for i in range(k):
	if a[i] != 0:
		l.append(a[i])
j = len(l)
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
array = []
count = 0
for letter in name:
	if letter not in array:
		array.append(letter)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
a = [0]
ans = 0
for i in range(len(s)):
	if s.count(s[i]) > 1:
		a.append(s.count(s[i]))
	else:
		ans += 1
a.sort()
for i in range(2, max(a) + 1):
	ans += a.count(i) // i
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


list1 = list(input())
list2 = []
n = len(list1)
for m in range(0, n):
	if list1[m] in list2:
		continue
	else:
		list2.append(list1[m])
if len(list2) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = input()
lis = []
for i in range(len(user)):
	if user[i] not in lis:
		lis.append(user[i])
if len(lis) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
l1 = []
for char in word:
	l1.append(char)
l2 = set(l1)
count = len(l2)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def rem(a):
	a = list(a)
	b = []
	for i in a:
		if i in b:
			pass
		else:
			b.append(i)
	return b
A = len(rem(str(input())))
if A % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
lst = []
for char in st:
	lst.append(char)
lst = set(lst)
print('IGNORE HIM!' if len(lst) % 2 else 'CHAT WITH HER!')


usern = input()
setUser = set(usern)
leny = len(setUser)
if leny % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def finding_numbers(string1):
	new_string = ''
	for i in range(len(string1)):
		if string1[i] in new_string:
			continue
		else:
			new_string += string1[i]
	no_of_chars = len(new_string)
	return no_of_chars
string1 = str(input())
no_of_chars = finding_numbers(string1)
if no_of_chars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = list(input())
d = {}
for i in s:
	d[i] = s.count(i)
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
list1 = list(str1)
set1 = set(list1)
x = len(set1)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


un = input()
length = len(un)
arr = [i for i in un]
index = 1
num = length
for i in arr[:length - 1]:
	if i in arr[index:]:
		num = num - 1
	index = index + 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = [s[i] for i in range(len(s))]
ls = set(l)
x = len(ls)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
b = len(a)

def fid(x, y, l):
	n = len(l)
	for i in range(y, n):
		if l[i] == x:
			l[i] = ''
	return l
for i in range(b):
	fid(a[i], i + 1, a)
c = ''.join(a)
d = len(c)
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = []
n = input()
for term in n:
	if term not in l:
		l.append(term)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
nickLetters = []
letterFrequency = {}
valid = False
for i in nick:
	nickLetters.append(i)
for harf in nickLetters:
	if harf in letterFrequency.keys():
		letterFrequency[harf] += 1
	else:
		letterFrequency[harf] = 1
if len(letterFrequency.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def fun(x, a):
	count = 0
	for i in range(len(x)):
		a[ord(x[i]) - 97] += 1
	for i in range(26):
		if a[i] != 0:
			count += 1
	if count % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
x = input()
a = [0] * 26
print(fun(x, a))


l = {}
for i in input():
	if i in l.keys():
		continue
	l[i] = 1
print('CHAT WITH HER!' if len(l) % 2 == 0 else 'IGNORE HIM!')


entradaa = input()
a = len(set(sorted(entradaa)))
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def gender(s: str):
	d = {}
	for i in s:
		if i not in d:
			d[i] = 1
		else:
			d[i] += 1
	if len(d) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
r = input()
gender(r)


word = input()
letters = []
count = 0
for i in word:
	if not i in letters:
		count += 1
		letters.append(i)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
sr = sorted(s)
count = 0
for i in range(len(s)):
	if i > 0 and sr[i - 1] != sr[i]:
		count = count + 1
count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
res = ''
for char in name:
	if char not in res:
		res += char
print('CHAT WITH HER!' if len(res) % 2 == 0 else 'IGNORE HIM!')


s = input()
s = s.lower()
r = []
a = 0
for i in range(len(s)):
	if r == []:
		r.append(s[i])
	elif s[i] not in r:
		r.append(s[i])
a = len(r)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
unique_chars = set(username)
num_of_unique = len(unique_chars)
if num_of_unique % 2 == 0:
	print('CHAT WITH HER!')
elif num_of_unique % 2 != 0:
	print('IGNORE HIM!')


def prog():
	n = input()
	a = ''
	for (i, x) in enumerate(n):
		if x not in a:
			a += x
	if len(a) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
prog()


m = input()
seen = set()
for char in m:
	seen.add(char)
l = len(seen)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
st = input()
x = {}
for i in st:
	x[i] = 1
print('CHAT WITH HER!' if len(x) % 2 == 0 else 'IGNORE HIM!')


userInput = input()
alphabet = 'abcdefghijklmnopqrstuvwxyz'
chat = True
overall_len = len(userInput)
for i in alphabet:
	calcu = userInput.count(i)
	if calcu > 1:
		overall_len -= calcu + 1
if overall_len % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
k = 0
while len(a) > 0:
	k += 1
	m = a[0]
	i = a.count(m)
	for _ in range(i):
		a.remove(m)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def findMajority(arr, size):
	m = {}
	for i in range(size):
		if arr[i] in m:
			m[arr[i]] += 1
		else:
			m[arr[i]] = 1
	return m
a = input()
k = findMajority(a, len(a))
b = len(k)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
name = stdin.readline()
unique_chars = set((c for c in name))
if len(unique_chars) % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
word.lower()
counter = 0
sortedList = sorted(word)
anotherEnd = len(word)
end = len(sortedList)
for i in range(len(sortedList)):
	if i < end and end < 100:
		if sortedList[i] != sortedList[i - 1]:
			counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def isFemale(pattern):
	pattern = list(set(list(pattern)))
	return len(pattern) % 2 == 0
username = input().strip()
is_female = isFemale(username)
print('CHAT WITH HER!' if is_female else 'IGNORE HIM!')


name = input()
num = 0
if len(name) == 1:
	print('IGNORE HIM!')
elif len(set(name)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def listToString(s):
	str1 = ''
	return str1.join(s)
UserName = input()
duplicates = []
for char in UserName:
	if UserName.count(char) > 1:
		pass
	if char not in duplicates:
		duplicates.append(char)
UserName = listToString(duplicates)
UserName = len(UserName)
if UserName % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = list(input())
seen = set()
for x in l:
	seen.add(x)
if len(seen) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
letters = dict()
count = 0
for i in name:
	letters[i] = letters.get(i, 0) + 1
for key in letters:
	if letters[key]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
str2 = str1[0]
for i in range(1, len(str1)):
	if str1[i] not in str2:
		str2 += str1[i]
if len(str2) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input().strip()
unique_chars = set()
for c in username:
	unique_chars.add(c)
if len(unique_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


letters = set(input())
num = len(letters)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
L = []
for letter in t:
	if letter not in L:
		L.append(letter)
if len(L) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
x = [0] * 26
for i in range(26):
	x[i] = s.count(str(chr(i + 97)))
a = 0
for i in x:
	if i > 0:
		a += 1
if a % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def checkName(name):
	list_different_chars = []
	for i in name:
		encontrado = False
		for j in range(len(list_different_chars)):
			if i == list_different_chars[j]:
				encontrado = True
		if not encontrado:
			list_different_chars.append(i)
	if len(list_different_chars) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'

def main():
	s = input()
	print(checkName(s))
main()


n = input()
i = 0
res_1 = 0
if len(n) <= 100:
	n = list(n)
	n = list(set(n))
	for bukva in n:
		res_1 += 1
	if res_1 % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


def boyOrGirl():
	n = set(input())
	if len(n) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
boyOrGirl()


n = str(input())
n1 = n.lower()
a1 = set()
n2 = len(n1)
for i in range(n2):
	a1.add(n1[i])
n3 = len(a1)
if n3 % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import time

class Profiler(object):

	def __enter__(self):
		self._startTime = time.time()

	def __exit__(self, type, value, traceback):
		print('Elapsed time: {:.3f} sec'.format(time.time() - self._startTime))
s = input()
if len(set(s)) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(str(input()))
alphabet = []
s = 0
for i in range(len(name)):
	if name[i] not in alphabet:
		alphabet.append(name[i])
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
res = ''
for l in str:
	if l not in res:
		res += l
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def remove(init):
	final_list = []
	for i in init:
		if i not in final_list:
			final_list.append(i)
	return final_list
string = input()
string = list(string)
stri = remove(string)
if len(stri) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = str(input())
massif = set(line)
if len(massif) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import collections
import math
import functools
import itertools
import bisect
import operator
import heapq
import random
true = True
false = False
null = None
tcid = 0

def ceil(a, b):
	ans = a // b
	if a % b != 0:
		ans += 1
	return ans

def perr(*args, **kwargs):
	print(*args, file=sys.stderr, **kwargs)

def line():
	ln = sys.stdin.readline().strip()
	if ln == '':
		sys.exit()
	return ln

def lines(n):
	return [line() for i in range(n)]

def split(ln=None):
	return (ln or line()).split()

def parse(*parsers):
	return list(map(lambda p, w: p(w), parsers, split()))

def nums(o=None):
	if o is not None:
		if isinstance(o, int):
			o = lines(o)
		elif isinstance(o, str):
			o = split(o)
	return list(map(int, o or split()))

def num():
	return int(line())

def solve(tcid=1):
	s = line()
	s = set(s)
	ans = ['CHAT WITH HER!', 'IGNORE HIM!']
	print(ans[len(s) % 2])
while true:
	tcid += 1
	solve(tcid)


string = str(input())
word = []
for i in range(len(string)):
	if string[i:i + 1] not in word:
		word.append(string[i:i + 1])
if len(word) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
l = []
for letter in st:
	if letter not in l:
		l.append(letter)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Boy_or_Girl():
	username = str(input())
	abc = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
	counter = 0
	for i in username:
		if i in abc:
			counter += 1
			abc.remove(i)
		else:
			continue
	if counter % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
Boy_or_Girl()


def main():
	username = input()
	unique_chars = get_unique(username)
	if unique_chars % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')

def get_unique(name):
	lst = []
	for letter in name:
		if letter not in lst:
			lst.append(letter)
	return len(lst)
main()


import sys
from sys import stdin, stdout
import bisect
from bisect import bisect_left as bl
from bisect import bisect_right as br
import itertools
from collections import Counter
import collections
import math
import heapq
import re

def modinv(n, p):
	return pow(n, p - 2, p)

def cin():
	return map(int, sin().split())

def ain():
	return list(map(int, sin().split()))

def sin():
	return input()

def inin():
	return int(input())

def Divisors(n):
	l = []
	for i in range(1, int(math.sqrt(n) + 1)):
		if n % i == 0:
			if n // i == i:
				l.append(i)
			else:
				l.append(i)
				l.append(n // i)
	return l

def most_frequent(list):
	return max(set(list), key=list.count)

def GCD(x, y):
	while y:
		(x, y) = (y, x % y)
	return x

def ncr(n, r, p):
	t = fact[n] * (ifact[r] * ifact[n - r] % p) % p
	return t

def Convert(string):
	li = list(string.split(''))
	return li

def SieveOfEratosthenes(n):
	global prime
	prime = [True for i in range(n + 1)]
	p = 2
	while p * p <= n:
		if prime[p] == True:
			for i in range(p * p, n + 1, p):
				prime[i] = False
		p += 1
	f = []
	for p in range(2, n):
		if prime[p]:
			f.append(p)
	return f
prime = []
q = []

def dfs(n, d, v, c):
	global q
	v[n] = 1
	x = d[n]
	q.append(n)
	j = c
	for i in x:
		if i not in v:
			f = dfs(i, d, v, c + 1)
			j = max(j, f)
	return j

def main():
	s = sin()
	s = set(s)
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
py2 = round(0.5)
if py2:
	from future_builtins import ascii, filter, hex, map, oct, zip
	range = xrange
import os, sys
from io import IOBase, BytesIO
BUFSIZE = 8192

class FastIO(BytesIO):
	newlines = 0

	def __init__(self, file):
		self._file = file
		self._fd = file.fileno()
		self.writable = 'x' in file.mode or 'w' in file.mode
		self.write = super(FastIO, self).write if self.writable else None

	def _fill(self):
		s = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
		self.seek((self.tell(), self.seek(0, 2), super(FastIO, self).write(s))[0])
		return s

	def read(self):
		while self._fill():
			pass
		return super(FastIO, self).read()

	def readline(self):
		while self.newlines == 0:
			s = self._fill()
			self.newlines = s.count(b'\n') + (not s)
		self.newlines -= 1
		return super(FastIO, self).readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.getvalue())
			(self.truncate(0), self.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		if py2:
			self.write = self.buffer.write
			self.read = self.buffer.read
			self.readline = self.buffer.readline
		else:
			self.write = lambda s: self.buffer.write(s.encode('ascii'))
			self.read = lambda : self.buffer.read().decode('ascii')
			self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
main()


n = input()
x = []
for letter in n:
	if letter not in x:
		x.append(letter)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
for letters in name[:]:
	n = name.count(letters)
	if n >= 1:
		for i in range(n - 1):
			name.remove(letters)
length = len(name)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = []

def BORG(name):
	for c in name:
		lst.append(c)
	if len(list(set(lst))) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
n = input()
print(BORG(n))


n = set(map(str, input()))
print('IGNORE HIM!' if len(n) % 2 else 'CHAT WITH HER!')


str = input()
a = []
total = 0
for i in range(0, 26):
	a.append(0)
for ch in str:
	if a[ord(ch) - 97] == 0:
		a[ord(ch) - 97] = 1
		total += 1
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	s = input()
	chars = ''
	nc = 0
	for c in s:
		if c not in chars:
			chars += c
			nc += 1
	if nc % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


word = input() + '9'
distcar = int(0)
while word[0] != '9':
	distcar = distcar + 1
	word = word.replace(word[0], '')
if distcar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
counter = 0
while s != '':
	if s.count(s[0]) > 1:
		counter += 1
		s = s.replace(s[0], '', s.count(s[0]))
	elif s.count(s[0]) == 1:
		s = s.replace(s[0], '', s.count(s[0]))
		counter += 1
if counter % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
b = [a[i] for i in range(len(a))]
un = []
for i in b:
	if i not in un:
		un.append(i)
k = len(un) % 2
if k:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
nickname = sys.stdin.readline().strip()
nickname_letters = {c for c in nickname}
if len(nickname_letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
dicts = {}
for i in k:
	if i not in dicts:
		dicts[i] = 1
n = len(dicts)
if n & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
b = list(a)
d = []
i = 0
while i < len(b):
	if b[i] not in d:
		d.append(b[i])
	i += 1
e = len(d)
if e % 2 == 0:
	print('CHAT WITH HER!')
elif e % 2 > 0:
	print('IGNORE HIM!')


ins = str.lower(input())
ins_1 = len(set(ins))
if ins_1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solver(text):
	if len(set(text)) & 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
solver(input())


nickname = input()
alphabet = 'abcdefghijklmnopqrstuvwxyz'
qu = len(nickname)
for i in range(len(alphabet)):
	if nickname.count(alphabet[i]) > 1:
		qu -= nickname.count(alphabet[i])
		qu += 1
if qu % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input().lower()
username = set(username)
n = len(username)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
ans = 0
for char in username:
	if int(username.count(char)) >= 1:
		username = username.replace(char, '')
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


num = input()
li = []
for i in num:
	if i in li:
		pass
	else:
		li.append(i)
if len(li) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = ('CHAT WITH HER!', 'IGNORE HIM!')
len = len(set(input()))
index = len % 2
print(s[index])


n = input()
distinct = {}
if len(n) < 100:
	distinct = set(n)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = list(s)
ass = set(ss)
ans = len(ass) % 2
if ans == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
newset = set(())
if len(s) >= 1 and len(s) <= 100:
	for i in s:
		newset.add(i)
	if len(newset) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


def nickname(username):
	uniq = set(username)
	uniq = list(uniq)
	if len(uniq) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
username = input()
nickname(username)


s = str(input())
d = []
ans = 0
for i in s:
	if i not in d:
		d += i
	else:
		pass
ans = len(d)
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = len(a)
x = 1
y = 0
z = 0
while b <= 100 and z < b - 1:
	if a[z] != a[x] and x < b:
		x = x + 1
		if x == b:
			y = y + 1
			z = z + 1
			x = z + 1
	else:
		z = z + 1
		x = z + 1
y = y + 1
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = list(input())
newstring = [0]
n = len(string)
for i in range(n):
	if string[i] in newstring:
		continue
	else:
		newstring.append(string[i])
newn = len(newstring) - 1
if newn % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = list(input())
x = len(a)
f = []
i = 0
for s in a:
	if s not in f:
		f.append(s)
d = len(f)
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


__author__ = 'sanu001'
import queue
__read_tokens = queue.Queue()

def next_string():
	while __read_tokens.empty():
		for i in input().split():
			__read_tokens.put(i)
	return __read_tokens.get()

def next_int():
	return int(next_string())

def next_float():
	return float(next_string())

def next_line():
	if not __read_tokens.empty():
		raise Exception('Unclean token cache')
	return input()
s = next_string()
n = len(s)
s = sorted(s)
ss = ''
for i in range(n):
	if s[i - 1] != s[i]:
		ss = ss + s[i]
nn = len(ss)
if nn % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
b = 'abcdefghijklmnopqrstuvwxyz'
c = list(b)
m = 0
for i in a:
	if i in c:
		c.remove(i)
		m = m + 1
	else:
		m = m
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


counts = dict()
for char in input():
	counts[char] = counts.get(char, 0) + 1
if len(counts.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = []
for i in range(0, 26):
	lst.append(0)
_str = input()
num = 0
for i in range(0, len(_str)):
	k = ord(_str[i]) - ord('a')
	if lst[k] == 0:
		num = num + 1
		lst[k] = 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	username = list(input())
	characters = set()
	for c in username:
		characters.add(c)
	if len(characters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


x = len(list(set(list(input()))))
if x % 2 == 0:
	print('CHAT WITH HER!')
if x % 2 == 1:
	print('IGNORE HIM!')


def answer(string):
	if len(set(string)) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
inputs = input()
string = str(inputs.split(' ')[0])
print(answer(string))


a = str(input())
b = set(list(a))
if len(b) & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
n = len(name)
li = []
for i in range(n):
	if name[i] not in li:
		li.append(name[i])
result = len(li)
if result % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().lower()
m = set()
for i in s:
	m.add(i)
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
elif len(m) % 2 == 1:
	print('IGNORE HIM!')


string1 = input()
string2 = ''
for ele in string1:
	if ele not in string2:
		string2 += ele
x = len(string2)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
countt = 0
new_s = ''
for i in range(len(s)):
	if s[i] not in new_s:
		new_s += s[i]
print('CHAT WITH HER!') if len(new_s) % 2 == 0 else print('IGNORE HIM!')


x = input()
l = []
count = 0
for i in range(29):
	l.append(0)
for i in x:
	l[ord(i) - ord('a')] += 1
for i in l:
	if i > 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input('').lower()
lis = list(inp)
uniqe = []
for item in lis:
	if item not in uniqe:
		uniqe.append(item)
if len(uniqe) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s1 = input()
s2 = ''
for i in range(len(s1)):
	if s2.find(s1[i]) == -1:
		s2 = s2 + s1[i]
if len(s2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
aad = ''
nb = 0
for letter in s:
	if letter not in aad:
		nb += 1
		aad += letter
if nb % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
di = dict()
for el in st:
	if el in di:
		di[el] += 1
	else:
		di[el] = 0
if len(di) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


chars = set()
line = input()
for c in line:
	chars.add(c)
if len(chars) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import OrderedDict
inp = input()
k = len(OrderedDict.fromkeys(inp))
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
from math import sqrt
inp = sys.stdin.readline
read = lambda : list(map(int, inp().split()))

def solve():
	print('CHAT WITH HER!' if len(set(list(inp().strip()))) % 2 == 0 else 'IGNORE HIM!')
solve()


n = input()
l = []
for i in range(len(n)):
	l.append(n[i])
l = list(set(l))
if len(l) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def split(word):
	return [char for char in word]
name = split(str(input()))
name = list(dict.fromkeys(name))
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
k = []
for i in a:
	if i not in k:
		k.append(i)
print('IGNORE HIM!') if int(len(k)) % 2 == 1 else print('CHAT WITH HER!')


namelist = [x for x in input()]
duplist = []
num = 0
for i in range(len(namelist)):
	if namelist[i] not in duplist:
		num += 1
		duplist.append(namelist[i])
if num % 2 == 0:
	print('CHAT WITH HER!')
elif num % 2 == 1:
	print('IGNORE HIM!')


T = input()
S = ''
K = 0
for I in T:
	if I not in S:
		S += I
		K += 1
if K % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = [x for x in s]
sEt = set(arr)
if len(sEt) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = list(input())
d = dict()
for i in text:
	key = i
	if key not in d:
		d[key] = 0
	d[key] = d[key] + 1
num = len(d.keys())
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
b = set()
ans = 0
for i in s:
	if i not in b:
		ans += 1
		b.add(i)
print('CHAT WITH HER!' if ans % 2 == 0 else 'IGNORE HIM!')


n = input()
n2 = ''
for k in range(len(n)):
	a = n2.find(n[k])
	if a == -1:
		n2 += n[k]
if len(n2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strng = str(input())
count = 0
mlist = []
for i in range(len(strng)):
	if strng[i] in mlist:
		pass
	else:
		mlist.append(strng[i])
if len(mlist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = input()
spis = sorted(list(nickname))
counter = 0
last = '1'
while len(spis) > 0:
	if spis[0] == last:
		spis = spis[1:]
	else:
		counter += 1
		last = spis[0]
		spis = spis[1:]
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = list(input())
unique = []
for char in x[:]:
	if char not in unique:
		unique.append(char)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def find(s):
	x = list(set(s))
	if len(x) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
find(s)


s = input()
k = [char for char in s]
normalset = set(k)
n = len(normalset)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
l = ''
for j in range(len(n)):
	if n[j] in l:
		l.replace(n[j], '')
	else:
		l = n[j] + l
c = 0
for i in range(len(l)):
	c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
l.sort()
ans = 0
for i in range(len(l) - 1):
	if l[i] != l[i + 1]:
		ans += 1
if ans % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def Boy_or_Girl(string):
	s_sort = set(string)
	if len(s_sort) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
string = input()
Boy_or_Girl(string)


user = input()
check = 0
for i in range(len(user) - 1):
	for j in range(i + 1, len(user)):
		if user[i] == user[j]:
			check += 1
			break
if (len(user) - check) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
gender = sys.stdin.readline()
num_let = 0
used = ['']
for a in gender:
	num_let += 1
	if a in used:
		num_let -= 1
	used.append(a)
num_let = num_let - 1
if num_let % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
list = sorted(name)
c = 0
a = 0
b = 0
for j in list:
	d = b
	if a == b:
		b += list.count(j)
	if list[b - 1] == j and a == d:
		c += 1
	a += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
ref_list = [username[0]]
count = 1
for each_ltr in username[1:]:
	if each_ltr in ref_list:
		a = 'do nothing'
	else:
		ref_list.append(each_ltr)
		count += 1
if len(ref_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name_2 = list(name)
name_2.append('A')
counter = 0
k = 0
for i in range(97, 123):
	for j in range(len(name_2) - 1):
		if name_2[j] == chr(i):
			name_2[j] = 0
			k = j
	if name_2[k] == 0:
		counter += 1
		k = len(name_2) - 1
if counter % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input().lower()
letters = []
for letter in name:
	if (letter in letters) == False:
		letters.append(letter)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
f = list(x)
distinct = list(set(f))
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
import heapq

def binNumber(n, size):
	return bin(n)[2:].zfill(size)

def gcd(a, b):
	if a == 0:
		return b
	return gcd(b % a, a)
s = str(input())
a = {}
j = 0
for i in s:
	if i not in a:
		j += 1
		a[i] = 1
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
r = ''
for i in n:
	if i not in r:
		r += i
if len(r) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


__author__ = 'Azad'
person_name = input()
person_name = set(person_name)
if len(person_name) % 2 is 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	name = input().strip()
	l = set(name)
	if len(l) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


a = input()
n = int(len(str(set(a))))
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


test = list(input())
tam = len(test)
a = 0
for letra in range(tam):
	if letra != -1:
		a = test.count(test[letra])
		test[letra] = a
quantidade = 0
for i in range(tam):
	if test[i] < 2:
		quantidade += 1
if quantidade % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name = list(name)
final = []
for character in name:
	if character not in final:
		final.append(character)
ans = len(final)
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input(''))
l = []
for i in range(0, len(n)):
	p = n[i]
	if not p in l:
		l.append(p)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inpt = input()
new_str = []
count = 0
for i in range(len(inpt)):
	check = inpt[i] in new_str
	if check == False:
		new_str.append(inpt[i])
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
main = []
for a in range(len(x)):
	main.append(x[a])
main2 = []
for i in main:
	if i not in main2:
		main2.append(i)
if len(main2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
b = []
for i in list(a):
	if i not in b:
		b.append(i)
d = ''
c = len(d.join(b))
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
new = ''
for i in string:
	if string.find(i) != -1 and new.find(i) == -1:
		new = new + i
n = len(new)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input_str = input()
distinct_list = []
for char in input_str:
	if char not in distinct_list:
		distinct_list.append(char)
if len(distinct_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
letters = dict()
for i in str:
	if i not in letters:
		letters[i] = 1
	else:
		letters[i] += 1
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
jh = ''.join(set(word))
if len(jh) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
import math
a = stdin.readline()
A = len(a)
S = set()
for b in range(0, A - 1):
	S.add(a[b])
if len(S) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def do(a):
	b = len(set(a))
	if b % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
a = input()
print(do(a))


a = str(input())
b = []
b.append(a[0])
i = 1
while i <= len(a) - 1:
	if a[i] in b:
		i = i + 1
	else:
		b.append(a[i])
		i = i + 1
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
name = dict()
for a in s:
	if a in name:
		name[a] = name[a] + 1
	else:
		name[a] = 1
if len(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = str(input())
k = Counter(s)
s1 = 0
for i in k:
	if k[i] >= 1:
		s1 += 1
print('IGNORE HIM!' if s1 % 2 == 1 else 'CHAT WITH HER!')


nickName = input('')
listLetter = []
for i in nickName:
	if i not in listLetter:
		listLetter.append(i)
if len(listLetter) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


A = input()
mas = []
for i in A:
	if i not in mas:
		mas.append(i)
print('CHAT WITH HER!' if len(mas) % 2 == 0 else 'IGNORE HIM!')


s = str(input()).lower()
n = 0
for x in s:
	if s.count(x) > 1 and x != '*':
		n = n + 1
		s = s.replace(x, '*')
if (len(s) - s.count('*') + n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str(input())
a = set(n)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
elif len(a) % 2 != 0:
	print('IGNORE HIM!')


s = str(input())
gset = set()
for i in s:
	gset.add(i)
if len(gset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input().lower()
cnts = [0] * 26
for y in x:
	cnts[ord(y) - ord('a')] += 1
distCnt = 0
for i in cnts:
	if i >= 1:
		distCnt += 1
if distCnt % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


S = set([s for s in input()])
if len(S) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
con = 0
al = 'abcdefghijklmnopqrstuvwxyz'
for i in al:
	if inp.count(i) >= 1:
		con = con + 1
if con % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import os

def int_array():
	return list(map(int, input().strip().split()))

def str_array():
	return input().strip().split()

def gcd(a, b):
	if b == 0:
		return a
	return gcd(b, a % b)

def take_input():
	if os.environ.get('check'):
		sys.stdin = open('input.txt', 'r')
		sys.stdout = open('output.txt', 'w')
take_input()
s = list(input().lower())
lowercase = [chr(i) for i in range(97, 97 + 26)]
count = 0
new = []
for i in range(len(s)):
	if s[i] not in new:
		count += 1
		new.append(s[i])
print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


name = str(input())
name = sorted(name)
uniques = ''
for i in range(len(name) - 1):
	if name[i] != name[i + 1]:
		uniques += name[i]
if len(uniques) % 2 != 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
value = ''.join(set(string))
length = len(value)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
c = 1
l = len(s)
s = sorted(s, key=lambda x: x.lower())
for i in range(l - 1):
	if s[i] != s[i + 1]:
		c += 1
if c % 2 == 1:
	print('IGNORE HIM!\n')
elif c % 2 == 0:
	print('CHAT WITH HER!\n')
else:
	print()


import sys
for line in sys.stdin:
	a = line.lower()
	b = list(set(a))
	if len(b) % 2 == 1:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


astr = input()
l = []
for a in astr:
	if a not in l:
		l.append(a)
	else:
		pass
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Str = input()
res = set(Str)
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
x = string.ascii_lowercase
s = str(input())
char = 0
for i in range(len(x)):
	if x[i] in s:
		char += 1
if char % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = ''
flag = False
for i in a:
	for j in b:
		if i == j:
			flag = True
	if flag == False:
		b += i
	flag = False
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
new_s = list(s)
new_set = set(new_s)
if len(new_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
seta = set(s)
count = len(seta)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
result = {'odd': 'IGNORE HIM!', 'even': 'CHAT WITH HER!'}
dis_str = ''.join(set(string))
l = len(dis_str)
if l % 2 == 0:
	print(result['even'])
else:
	print(result['odd'])


n = input()
s = len(n)
i = 0
l = []
while i < s:
	a = n[i]
	l.append(a)
	i = i + 1
t = set(l)
s = len(t)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
b = []
for i in s:
	b.append(ord(i))
c = [0 for i in range(max(b) + 1)]
for i in b:
	c[i] += 1
t = 0
for i in c:
	if i is not 0:
		t += 1
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
mem = []
counter = 0
for i in range(len(s)):
	if s[i] in mem:
		pass
	else:
		counter += 1
		mem.append(s[i])
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
a = set(input())
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(username):
	distinct_characters = set(username)
	return 'IGNORE HIM!' if len(distinct_characters) & 1 else 'CHAT WITH HER!'
username = input()
print(solve(username))


from collections import Counter
string = input()
ctr = Counter(string)
if len(ctr) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


TN = 1

def solution():
	s = len(list(set(list(input()))))
	if s % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
while TN != 0:
	solution()
	TN -= 1


s = input()
a = []
k = 1
for c in s:
	a += c
for i in range(len(a) - 1, -1, -1):
	for j in range(i):
		if a[j] > a[j + 1]:
			(a[j], a[j + 1]) = (a[j + 1], a[j])
s1 = ''.join(map(str, a))
for i in range(1, len(s1)):
	if s1[i] != s1[i - 1]:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
counts = dict()
c = 0
for i in str:
	counts[i] = counts.get(i, 0) + 1
for i in counts:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = set(input())
k = 0
for i in name:
	k += 1
if k % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
d = {}
for i in s:
	d[i] = d.get(i, 0) + 1
n = len(d.keys())
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


if len(dict.values(dict.fromkeys(input(), [1]))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import os
import sys

def get_int():
	return int(input())

def get_ints():
	return map(int, input().split())

def get_strs():
	return input().split()

def get_float():
	return float(input())

def get_floats():
	return map(float, input().split())

def list_strs():
	return list(input().split())

def list_ints():
	return list(map(int, input().split()))

def list_floats():
	return list(map(float, input.split()))

def post(x):
	print(x, end=' ')
s = set(input())
print('CHAT WITH HER!' if len(s) % 2 == 0 else 'IGNORE HIM!')


from collections import Counter
s = input()
l = [i for i in s]
cout = dict(Counter(l))
res = len(list(cout.keys()))
if int(res % 2) == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input('')
n = 1
list_1 = [user_name[x:x + n] for x in range(0, len(user_name), n)]
if len(set(list_1)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


MyList = []
MySecondList = []
for i in range(ord('a'), ord('z') + 1):
	MyList.append(chr(i))
Word = input()
for i in MyList:
	if i in Word:
		MySecondList.append(i)
	else:
		pass
if len(MySecondList) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
a = {s[0]}
cnt = 1
for i in range(1, len(s)):
	if s[i] not in a:
		cnt += 1
		a.add(s[i])
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
letter_array = [name[i] for i in range(len(name))]
distinct_letters = set(letter_array)
if len(distinct_letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n = list(n)
n.sort()
cont = 1
for i in range(len(n) - 1):
	if n[i] != n[i + 1]:
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


my = input()
w = []
for c in my:
	if c not in w:
		w.append(c)
	else:
		pass
num = len(w)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import re
username = list(input())
changedUsername = []
for char in username:
	if char in changedUsername:
		continue
	else:
		changedUsername.append(char)
if len(changedUsername) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
unique_list = []
for i in str:
	if i not in unique_list:
		unique_list.append(i)
unique_list_length = len(unique_list)
if unique_list_length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def checking_m_or_f(name):
	if len(set(name)) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
st = input()
checking_m_or_f(st)


name = input()
dic = {}
for i in name:
	if i in dic:
		dic[i] += 1
	else:
		dic.update({i: 0})
extra = sum(dic.values())
if (len(name) - extra) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = str(input()).lower()
list_ = []
for letter in string:
	if letter not in list_:
		list_.append(letter)
count = len(list_)
if count % 2 == 1:
	print('IGNORE HIM!')
elif count % 2 == 0:
	print('CHAT WITH HER!')


s = input()
from collections import Counter
c = Counter(s)
l = len(c.values())
if not l & 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


while True:
	try:
		s = input()
	except EOFError:
		break
	mapa = {}
	for i in range(0, 30):
		mapa[i] = 0
	for i in s:
		index = ord(i) - ord('a')
		mapa[index] = mapa[index] + 1
	cont = 0
	for (key, value) in mapa.items():
		if value != 0:
			cont += 1
	print('CHAT WITH HER!' if cont % 2 == 0 else 'IGNORE HIM!')


x = input('')
x_list = []
for i in range(0, len(x)):
	x_list.append(x[i])
unique_word = set(x_list)
if len(unique_word) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


userName = input()
judge = dict()
for i in range(len(userName)):
	if userName[i] in judge:
		judge[userName[i]] = judge[userName[i]] + 1
	else:
		judge[userName[i]] = 1
if len(judge) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


(text, outp) = (input(), [])
for let in text:
	if let not in outp:
		outp.append(let)
answer = 'CHAT WITH HER!' if len(outp) % 2 == 0 else 'IGNORE HIM!'
print(answer)


s = set(map(str, input().strip()))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
b = len(n)
answer = 0
k = ''
for i in range(b):
	if n[i] not in k:
		k = k + n[i]
		answer += 1
if answer % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


__author = 'niketanrane'
str = set(input())
if len(str) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
import math
s = input()
done = []
c = 0
for i in s:
	if i not in done:
		done.append(i)
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
string = ''
for char in n:
	if char not in string:
		string += char
	else:
		pass
if len(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
name = stdin.readline().rstrip()
uniqueChars = len(set(name))
if uniqueChars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
a = 0
b = []
for i in range(len(n)):
	if n[i] not in b:
		a = a + 1
		b.append(n[i])
	if i == len(n):
		break
if a % 2 == 0:
	print('CHAT WITH HER!')
if a % 2 == 1:
	print('IGNORE HIM!')


s = input()
a = [0] * 256
c = 0
for i in range(len(s)):
	if a[ord(s[i])] == 1:
		c -= 1
	elif a[ord(s[i])] == 0:
		a[ord(s[i])] += 1
		c += 1
if a.count(1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
seen = []
res = 0
for letter in string:
	if letter not in seen:
		res += 1
		seen.append(letter)
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
list = []
list_1 = []
number = 1
for letter in word:
	list.append(letter)
list.sort()
first_letter = list[0]
list_1.append(first_letter)
for item in list:
	if item != list_1[-1]:
		list_1.append(item)
		number += 1
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
m = {p for p in n}
if len(m) % 2 > 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
usernameList = list(username)
isdistinctChar = len(set(usernameList))
if isdistinctChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = str(input())
c = Counter(s)
l = len(c.keys())
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


X = input()
Z = [i for i in X]
L = []
for i in Z:
	if i in L:
		continue
	else:
		L.append(i)
if len(L) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
unrepeated = list(dict.fromkeys(s))
slength = len(unrepeated)
if slength % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
distname = set(name)
if int(len(distname)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
name_count = len(name)
name.sort()
count_chr = 1
newname = list()
for i in range(name_count):
	if i < name_count - 1:
		if name[i] != name[i + 1]:
			count_chr = count_chr + 1
if count_chr % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
x = username.split()
str = ''
boy = 0
girl = 0
gender = 0
for i in username:
	if i not in str:
		str = str + i
		gender += 1
if gender % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strs = input()
dicts = {}
for each in strs:
	if each not in dicts:
		dicts[each] = 1
if len(dicts) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


sp = list(input())
b = [0] * 26
for el in sp:
	b[ord(el) - 97] = 1
if sum(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math, string, itertools, fractions, heapq, collections, re, array, bisect, sys, random, time, copy, functools
sys.setrecursionlimit(10 ** 7)
inf = 10 ** 20
eps = 1.0 / 10 ** 10
mod = 10 ** 9 + 7
dd = [(-1, 0), (0, 1), (1, 0), (0, -1)]
ddn = [(-1, 0), (-1, 1), (0, 1), (1, 1), (1, 0), (1, -1), (0, -1), (-1, -1)]

def LI():
	return [int(x) for x in sys.stdin.readline().split()]

def LI_():
	return [int(x) - 1 for x in sys.stdin.readline().split()]

def LF():
	return [float(x) for x in sys.stdin.readline().split()]

def LS():
	return sys.stdin.readline().split()

def I():
	return int(sys.stdin.readline())

def F():
	return float(sys.stdin.readline())

def S():
	return input()

def pf(s):
	return print(s, flush=True)

def main():
	s = set((c for c in S()))
	if len(s) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(main())


s = str(input(''))
list = []
i = 0
newSet = []

def recognizeUser():
	i = 0
	for char in s:
		list.append(char)
	newList = set(sorted(list))
	new1List = newList
	return newList.union(new1List)

def countNum():
	k = 0
	for i in recognizeUser():
		k += 1
	return k

def checkerLog():
	if countNum() % 2 == 0:
		print('CHAT WITH HER!')
	elif countNum() % 2 != 0:
		print('IGNORE HIM!')
recognizeUser()
countNum()
checkerLog()


inp_str = str(input())
distnct_str = set(inp_str)
if len(distnct_str) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = str(input())
k = sorted(k)
k = ''.join(k)
c = int(0)
v = int(0)
u = int(len(k) - 1)
for i in range(0, u):
	if k[i] == k[i + 1]:
		c += 1
	else:
		v += 1
if v % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
length = len(username)
p = 0
while p != len(username):
	for x in range(p, len(username)):
		if x != p and username[p] == username[x]:
			length = length - 1
			break
	p = p + 1
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
text = text.lower()
t = []
for i in range(0, len(text)):
	if text[i] not in t:
		t.append(text[i])
	else:
		continue
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = str(input())
newstring = ''
for i in string:
	if i in newstring:
		continue
	newstring += i
if len(newstring) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
k = len(a)
i = 0
j = 0
count = 0
for i in range(len(a)):
	for j in range(i):
		if a[i] == a[j]:
			count = count + 1
			break
k = len(a) - count
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
a = list(a)
a.sort()
d = '='
cont = 0
for i in range(0, len(a)):
	if a[i] == d:
		pass
	else:
		d = a[i]
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = [False for i in range(26)]
for i in s:
	c[ord(i) - ord('a')] = True
sum = 0
for b in c:
	sum += b
if sum % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user_name = input()
letters = []
for i in user_name:
	if i in letters:
		continue
	else:
		letters.append(i)
length = len(letters)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = list(input())
chat_or_ignore = []
counter = 0
for i in range(len(nickname)):
	if nickname[i] not in chat_or_ignore:
		counter += 1
	chat_or_ignore += nickname[i]
if counter % 2 == 0 or counter == 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	S = set(input().rstrip())
	if len(S) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


str = input()
lst = []
for i in str:
	flag = False
	if i in lst:
		flag = True
	else:
		lst.append(i)
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = [i for i in input()]
ls = [string[0]]
for i in range(1, len(string)):
	if string[i] not in ls:
		ls.append(string[i])
r2 = len(ls) % 2
if r2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def football(string):
	a = []
	for i in range(len(string)):
		if string[i] not in a:
			a.append(string[i])
	if len(a) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(football(input()))


name = input()
name1 = list(name)
name2 = []
for x in name1:
	if x not in name2:
		name2.append(x)
a = len(name2)
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
yolo = []
count = 0
for letter in list(word):
	if yolo.count(letter) == 0:
		count += 1
	yolo.append(letter)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
distinct_Char = []
for i in s:
	distinct_Char.append(i)
	if distinct_Char.count(i) > 1:
		distinct_Char.remove(i)
if len(distinct_Char) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s_new = ''
for i in range(len(s)):
	if s_new.find(s[i]) == -1 and s[i] != ' ':
		s_new += s[i]
new = len(s_new)
if new / 2 == new // 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input('')
l = []
p = len(s)
for k in range(0, p):
	if s[k] not in l:
		l.append(s[k])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
arr = [i for i in name]
unique_list = []
for i in arr:
	if i not in unique_list:
		unique_list.append(i)
l = len(unique_list)
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
lenght = len(name)
counter = 0
for i in range(lenght):
	if i == 0:
		counter += 1
	elif i == lenght - 1:
		if name[-1] not in name[:lenght - 1]:
			counter += 1
	elif name[i] not in name[:i]:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
times = 0

def delet():
	global name
	global times
	if name == '':
		return
	ok = name[0]
	name = name.replace(ok, '')
	times += 1
	delet()
delet()
if times % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


entrada = input()
letras = {}
for letra in entrada:
	letras[letra] = True
len_letras = len(letras.keys())
if len_letras % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
c = set(w)
l = len(c)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str_0 = input()
list_0 = []
for i in str_0:
	list_0.append(i)
list_1 = list(set(list_0))
n = len(list_1)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


characters = [char for char in input()]
characters.sort()
distinct_char = 0
for i in range(len(characters) - 1):
	if characters[i] != characters[i + 1]:
		distinct_char += 1
if (distinct_char + 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = str(input())
unique = []
for letter in text:
	if letter not in unique:
		unique.append(letter)
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
r = dict()
for c in s:
	try:
		r[c] += 1
	except KeyError:
		r[c] = 1
if len(r.keys()) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
i = 0
a = 0
t = 0
username = list(username)
while i < len(username):
	j = i + 1
	while j < len(username):
		if username[i] == username[j]:
			username[j] = t
			a += 1
		j += 1
		t += 1
	i += 1
if (len(username) - a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = set([])
a = input()
for x in a:
	s.add(x)
b = 0
for x in s:
	b = b + 1
print('CHAT WITH HER!' if b % 2 == 0 else 'IGNORE HIM!')


s = input()
elems = set()
for cur in s:
	elems.add(cur)
print('CHAT WITH HER!' if len(elems) % 2 == 0 else 'IGNORE HIM!')


def main():
	userName = set(input())
	if len(userName) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


st = input()
dic = {}
for x in st:
	dic[x] = 0
if len(dic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
ss = 'abcdefghijklmnopqrstuvwxyz'
c = [0] * 26
i = 0
j = 0
while i < len(x):
	while j < len(ss):
		if x[i] == ss[j]:
			c[j] += 1
		j += 1
	j = 0
	i += 1
i = 0
sum = c.count(0)
if (26 - sum) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def split(word):
	return list(word)
x = 0
nickname = input()
nickname_check_list = split(nickname)
for each_char in range(len(nickname_check_list)):
	if nickname_check_list.count(nickname_check_list[x]) > 1:
		nickname_check_list.remove(nickname_check_list[x])
	elif nickname_check_list.count(nickname_check_list[x]) == 1:
		x += 1
if len(nickname_check_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
chars = []
for c in x:
	if c not in chars:
		chars = chars + [c]
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input('')
n = [item for item in k]
if len(list(set(n))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nums = [0] * 26
word = input()
for c in word:
	nums[ord(c) - 97] += 1
sum = 0
for i in nums:
	if i != 0:
		sum += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = len(a)
l = []
for x in range(b):
	if a[x] in l:
		pass
	else:
		l.append(a[x])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
l = []
for i in a:
	l.append(i)
l1 = []
for i in range(len(a)):
	c = l[i]
	if c not in l1:
		l1.append(l[i])
d = len(l1)
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
dic = {}
for i in l:
	dic[i] = dic.get(i, 0) + 1
if len(dic.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	name = input()
	chars = [ch for ch in name]
	msg = 'CHAT WITH HER!' if len(set(chars)) % 2 == 0 else 'IGNORE HIM!'
	print(msg)
main()


from itertools import groupby
str = input()
str1 = list()
str1 = ''.join((k for (k, g) in groupby(sorted(str))))
if len(str1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
l_name = list(name)
s_name = l_name[:]
for x in s_name:
	if l_name.count(x) > 1:
		l_name.remove(x)
if len(l_name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def answer():
	b = ''
	a = input()
	i = 0
	while i < len(a):
		if a[i] not in b:
			b += a[i]
		i += 1
	if len(b) % 2:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
print(answer())


handle = list(input())
array = []
for e in handle:
	if e not in array:
		array.append(e)
s = len(array)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
lis = []
fin = []
for i in name:
	lis.append(i)
sortlis = sorted(lis)
for i in range(len(lis)):
	if sortlis[i] != sortlis[i - 1]:
		fin.append(sortlis[i])
if len(fin) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = 0
l = []
for i in range(0, len(name)):
	if name.count(name[i]) == 1 and name[i] != '0':
		l.append(name[i])
	elif name[i] != '0':
		l.append(name[i])
		name = name.replace(name[i], '0', name.count(name[i]))
	else:
		pass
s = len(l)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mySet = set(list(input()))
newlist = list(mySet)
if len(newlist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = str(input())
x = w[0]
for ch in w[1:]:
	if not ch in x:
		x += ch
if len(x) % 2 == 1 or len(x) == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
positions = [0] * 200
count = 0
for i in range(len(word)):
	if positions[ord(word[i])] == 0:
		count += 1
		positions[ord(word[i])] = 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input().rstrip()
b = list(dict.fromkeys(a))
s = len(b)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
unique_characters = set([c for c in username])
if len(unique_characters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


userID = input()
id = []
i = 0
for x in userID:
	id.append(x)
id = list(dict.fromkeys(id))
if len(id) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = sorted(input())
x = len(a)
while x > 0:
	x = x - 1
	if a[x] == a[x - 1]:
		del a[x]
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = str(input())
d = []
z = 0
for k in range(len(i)):
	if i[k] not in d:
		z += 1
		d.append(i[k])
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dom = {''}
k = len(name)
for dem in name:
	dom.add(dem)
k = int(len(dom)) - 1
if k % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


usern = str(input())
chara = 0
while int(len(usern)) > 0:
	usern = usern.replace(usern[0], '')
	chara += 1
if int(chara) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input()
element = len(user)
for i in range(0, int(element)):
	if user[i] in user[i + 1:]:
		element -= 1
if element % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


r = input()
r1 = r.lower()
r2 = ''
j = 0
if len(r1) <= 100:
	for item in r1:
		if r1.index(item) == j:
			r2 = r2 + item
		j = j + 1
	if len(r2) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


s = input()
d = {}
for c in s:
	d[c] = 1
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(d) % 2 != 0])


s = str(input())
c = [0] * 26
count = 0
for i in s:
	c[ord(i) - 97] += 1
for i in c:
	if i > 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def defineSex(username):
	while 1 <= len(username) <= 100:
		unickList = list(dict.fromkeys(username))
		if len(unickList) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
		break
x = input()
defineSex(x)


def chat(s):
	if len(set(s)) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(chat(input()))


x = input()
d = {}
for c in x:
	if c in d.keys():
		d[c] = d[c] + 1
	else:
		d[c] = 1
length = len(d.keys())
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
t = input()
m = Counter(t)
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
check = set(str)
num = len(check)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
unique_list = []
for el in user_name:
	if el not in unique_list:
		unique_list.append(el)
length = len(unique_list)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


un = input()
arr = []
for c in un:
	if c not in arr:
		arr.append(c)
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
count = [0] * 256
for i in a:
	count[ord(i)] = 1
c = 0
for i in range(256):
	if count[i] == 1:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main1(a):
	n = 0
	cnt = 0
	a.sort()
	for i in range(len(a) - 1):
		if a[i] == a[i + 1]:
			cnt += 1
	n = len(a) - cnt
	if n % 2 == 1:
		print('IGNORE HIM!\n')
	else:
		print('CHAT WITH HER!\n')
n = list(str(input()))
main1(n)


s = input()
n = len(s)
num = 0
for i in range(n):
	if s[0:i].find(s[i]) == -1:
		num += 1
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
m = list(n)
s = []
for i in m:
	if i not in s:
		s.append(i)
x = len(s)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	name = input()
	name_list = []
	for i in range(len(name)):
		if name[i:i + 1] not in name_list:
			name_list.append(name[i:i + 1])
	if len(name_list) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


l = input()
S = {l[i] for i in range(len(l))}
if len(S) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
dis_items = dict()
count = 0
for c in s:
	if dis_items.get(c, 0) == 0:
		dis_items[c] = 1
		count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


N = input()
P = []
for j in N:
	if j not in P:
		P.append(j)
if len(P) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
g = list(s)
from collections import Counter
c = Counter(g)
k = list(c)
ln = len(k)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
list = ['0']
count = 0
x = 0

def check(a):
	for i in range(0, len(list)):
		if a == list[i]:
			return False
	return True
for i in s:
	if check(i):
		count = count + 1
	list.append(i)
	x = x + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = list(input())

def solve(strP):
	output = list(dict.fromkeys(strP))
	print('CHAT WITH HER!') if len(output) % 2 == 0 else print('IGNORE HIM!')
solve(str)


mydict = {}
string1 = input()
for i in string1:
	if i not in mydict.keys():
		mydict[i] = 1
c = len(mydict.keys())
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
unique_chars = set(str)
num_unique = len(unique_chars)
if num_unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = [0] * 3000
t = 0
for x in s:
	if l[ord(x)] == 0:
		t += 1
		l[ord(x)] = 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


chat = [x for x in input()]
explored = []
for x in chat:
	if x not in explored:
		explored.append(x)
if len(explored) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def user(name):
	distinct = 0
	unique = []
	for ch in name:
		if ch not in unique:
			unique.append(ch)
			distinct += 1
	if distinct % 2 == 0:
		print('CHAT WITH HER!')
		return
	print('IGNORE HIM!')
user(input())


string = input()
list1 = list(string)
list2 = []
for i in range(len(string)):
	if list1[i] not in list2:
		list2.append(list1[i])
if len(list2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = list(str(input()))
st = sorted(st)
for i in range(0, len(st) - 1):
	if st[i] == st[i + 1]:
		st[i] = ' '
if len(''.join(st).replace(' ', '')) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
line = sys.stdin.readline().strip()
d = 'CHAT WITH HER!'
m = 'IGNORE HIM!'
dict = {}
for i in range(0, len(line)):
	dict[line[i]] = 1
if len(dict) % 2 == 0:
	print(d)
else:
	print(m)


a = sorted(input())
b = 0
i = 1
while i < len(a):
	if a[i] != a[i - 1]:
		b += 1
	i += 1
if b % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


row = input()
l = []
for char in row:
	if char not in l:
		l.append(char)
final = len(l)
if final % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
l = []
num = 0
for i in s:
	if not i in l:
		num += 1
		l.append(i)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


con = set()
word = input()
for char in word:
	con.add(char)
if len(con) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def bg(s):
	s = set(s)
	if len(s) % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
s = input()
bg(s)


name = input()
tree = {''}
for i in range(len(name)):
	tree.add(name[i])
tamanho = len(tree)
if tamanho % 2 != 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin

def main():
	n = list(stdin.readline().strip())
	p = []
	for i in range(len(n)):
		if n[i] not in p:
			p.append(n[i])
	if len(p) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


inp = input()
out = ''.join(set(inp))
if len(out) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def simplify(a):
	m = []
	for item in a:
		if item in m:
			continue
		m.append(item)
	return m
word = str(input(''))
l = list(word)
counter = simplify(l)
quantity = 0
for count in counter:
	quantity = quantity + 1
if quantity % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = str(input())
c = len(''.join(set(inp)))
if len(inp) > 100:
	exit(0)
elif c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
let = [x for x in st]
u = ''
uniq = 0
for x in let:
	if not x in u:
		uniq += 1
	u += x
if uniq % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = Counter(list(input()))
if len(s) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
list1 = list(string)
strlen = len(string)
i = 0
j = 0
while i < strlen:
	j = i + 1
	while j < strlen:
		if list1[i] == list1[j]:
			list1.remove(list1[j])
			j = i
			strlen = strlen - 1
		j = j + 1
	i = i + 1
distinctLength = len(list1)
if distinctLength % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mj = input()
mj2 = []
for i in mj:
	if i not in mj2:
		mj2.append(i)
if len(mj2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for n in a:
	if n in b:
		continue
	b.append(n)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	username = input()
	chars = {}
	for c in username:
		chars[c] = 1
	print('CHAT WITH HER!' if len(chars) % 2 == 0 else 'IGNORE HIM!')
main()


data = input()
letter = []
step = 0
for i in range(0, len(data)):
	letter.append(data[i])
letter = set(letter)
if len(letter) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


input = input()
fake_input = ''
for c in input:
	if c not in fake_input:
		fake_input += c
if len(fake_input) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = list(input())
map = set(line)
if len(map) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
s.sort()
dupl = []
for i in range(len(s) - 1):
	if s[i] != s[i + 1]:
		dupl.append(s[i])
dupl.append(s[len(s) - 1])
if len(dupl) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
result = set(username)
length = len(result)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
s = input()
c = [0] * 26
hui = 0
for i in range(0, len(s)):
	c[ord(s[i]) % 97] += 1
for i in range(0, 26):
	if c[i] > 0:
		hui += 1
if hui % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input().lstrip().rstrip()

def gender(st):
	r = []
	for i in st:
		if i not in r:
			r.append(i)
	if len(r) % 2 == 0:
		return False
	else:
		return True
if gender(string):
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
L = []
for c in username:
	if c not in L:
		L.append(c)
if len(L) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


data = input()
mm = set()
for i in range(len(data)):
	mm.add(data[i])
if len(mm) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
ls = []
x = len(a)
for i in range(len(a)):
	if a[i] not in ls:
		ls.append(a[i])
		y = len(ls)
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
ok = 0
for i in range(x.__len__()):
	if x.count(x[i], i, x.__len__()) > 1:
		continue
	elif x.count(x[i], i, x.__len__()) == 1:
		ok = ok + 1
print(['CHAT WITH HER!', 'IGNORE HIM!'][ok % 2 == 1])


n = input()
data = []
for i in range(len(n)):
	data.append(n[i])
for i in range(len(data)):
	if data[i] != '-':
		for j in range(len(data)):
			if j != i:
				if data[j] == data[i]:
					data[j] = '-'
c = 0
for i in range(len(data)):
	if 'a' <= data[i] <= 'z':
		c += 1
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = list(map(str, input()))
a.sort()
print(['IGNORE HIM!', 'CHAT WITH HER!'][sum((a[i] != a[i + 1] for i in range(len(a) - 1))) % 2 != 0])


name = input()
s = set()

def isUnique(c):
	unique = c not in s
	if unique:
		s.add(c)
	return unique
n = len(list(filter(isUnique, name)))
print('CHAT WITH HER!' if n % 2 == 0 else 'IGNORE HIM!')


x = input()
x = list(x)
count = 0
x = set(x)
unique = len(x)
if unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	lst = []
	val = input()
	for x in val:
		if x not in lst:
			lst.append(x)
	if len(lst) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


x = input()

def hero(string):
	distinct = []
	for l in string:
		if l not in distinct:
			distinct.append(l)
	if len(distinct) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(hero(x))


s = input()
h = 0
st = set(s)
if len(st) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


usr_input = input()
distinct = set(usr_input)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
A = [0] * 26
for c in s:
	A[ord(c) - ord('a')] = 1
answer = sum(A)
if answer % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


Username = input('')
WordList = []
length = len(Username)
for i in range(length):
	if Username[i] not in WordList:
		WordList.append(Username[i])
count = len(WordList)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = 0
for i in 'aioyeubcdfghjklmnpqrstvwxz':
	c += int(s.count(i) > 0)
print(['IGNORE HIM!', 'CHAT WITH HER!'][1 - c % 2])


s = str(input())
a = []
for _ in range(len(s)):
	if s[_] not in a:
		a.append(s[_])
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input().split(' ')
text = ''.join(text)
print('CHAT WITH HER!' if not len(set(text)) % 2 else 'IGNORE HIM!')


user = input()
user_name = []
for x in user:
	if (x in user_name) == False:
		user_name.append(x)
if len(user_name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


lst = list(input())
unq = []
for i in lst:
	if i not in unq:
		unq.append(i)
if len(unq) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = len(set([_ for _ in input()]))
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
chars_user_name = set([char for char in user_name])
if len(chars_user_name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
setA = set()
for i in s:
	setA.add(i)
sub = 0
if ' ' in s:
	sub = 1
if (len(setA) - sub) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
if len(name) <= 100 and name.islower():
	name = list(name)
same = []
for i in range(0, len(name)):
	for j in range(i + 1, len(name)):
		if name[i] == name[j]:
			same.append(name[i])
			break
for i in range(0, len(same)):
	name.remove(same[i])
siz = len(name)
if siz % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = str(input())
list = []
for i in string:
	list.append(i)
list.sort()
i = 0
num = 0
while True:
	if i >= len(list):
		break
	if list.count(list[i]) >= 1:
		num += 1
		i = i + list.count(list[i])
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = list(s)
l = set(k)
h = len(l)
if h % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


anonymous_name = input()
character = [0] * 26
for let in anonymous_name:
	ord_let = ord(let) - ord('a')
	character[ord_let] = character[ord_let] + 1
unique_char = 0
for i in range(0, 26):
	if character[i] >= 1:
		unique_char = unique_char + 1
if unique_char % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


ipt = input()
charlist = [None]
for s in ipt:
	if s not in charlist:
		charlist.append(s)
if len(charlist) % 2 == 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = input()
n = ''
flag = int(1)
for i in range(len(m)):
	flag = 1
	for j in range(len(n)):
		if m[i] == n[j]:
			flag = 0
			break
	if flag == 1:
		n += m[i]
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = list(map(str, input()))
m = []
k = len(l)
for i in range(k):
	if l[i] not in m:
		m.append(l[i])
n = len(m)
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
count = 0
l = []
for i in range(len(n)):
	count = 0
	if n[i] not in l:
		for j in range(i + 1, len(n)):
			if n[i] == n[j] and count == 0:
				l.append(n[i])
				count = 1
		if count == 0:
			l.append(n[i])
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
d = {}
c = 0
for i in a:
	if i not in d:
		d[i] = 1
	else:
		d[i] = d[i] + 1
for j in d:
	c += 1
if int(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
if len(set(input())) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().rstrip('\r')
a = [0] * 26
for i in range(len(s)):
	a[ord(s[i]) - 97] += 1
count = 0
for i in range(26):
	if a[i] > 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
a = []
n = 0
m = 0
for i in range(len(k)):
	a.append(k[i])
for i in range(len(k)):
	for j in range(len(k)):
		if a[i] == a[j] and i != j:
			a[i] = ''
			n = n + 1
m = len(k) - n
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


colo = input()
n = len(colo)
y = 0
for i in range(0, n):
	if colo[i] not in colo[i + 1:]:
		y += 1
if y % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


instr = input()
contentList = []
for c in instr:
	if c not in contentList:
		contentList.append(c)
if len(contentList) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input('')
b = 0
for i in 'qwertyuiopasdfghjklzxcvbnm':
	if i in a:
		b = b + 1
if b % 2 == 0:
	print('CHAT WITH HER!')
if b % 2 == 1:
	print('IGNORE HIM!')


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input()
	return list(s[:len(s) - 1])

def invr():
	return map(int, input().split())
s = insr()

def isin(L, a):
	for i in L:
		if i == a:
			return True
	return False

def distin(L):
	t = [L[0]]
	n = len(L)
	for i in range(1, n):
		if isin(t, L[i]) == False:
			t.append(L[i])
	return t
k = len(distin(s))
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


S = input()
ans = 0
for i in range(26):
	if S.count(chr(ord('a') + i)) != 0:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
str1 = list(str1)
s = ''
for i in range(len(str1)):
	if str1[i] not in s:
		s = s + str1[i]
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def removeDupWithoutOrder(str):
	return ''.join(set(str))
a = input()
a = removeDupWithoutOrder(a)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


distinct_characters = []
UserName = input()
for char in UserName:
	if char not in distinct_characters:
		distinct_characters.append(char)
if len(distinct_characters) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
x = ''.join(set(name))
namelen = len(x)
if namelen % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = 0
while ord(s[0]) >= 97 and ord(s[0]) <= 122:
	a = a + 1
	s = s.replace(s[0], '')
	if len(s) == 0:
		break
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
x = 0
for i in range(97, 123):
	b = a.count(chr(i), 0, len(a))
	if b != 0:
		b -= 1
	x += b
b = len(a) - x
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
l = []
l[:] = a
k = []
m = len(l)
for i in range(len(l)):
	for j in range(i + 1, len(l)):
		if l[i] != l[j]:
			continue
		else:
			m -= 1
			break
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


length = len(list(set([_ for _ in input()])))
if length % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
length = len(x)
i = 0
letters = {*{}}
while length != 0:
	letters.add(x[i])
	length -= 1
	i += 1
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


dicti = {}
s = input()
for ch in s:
	dicti[ch] = 1
if len(dicti) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input().rstrip()
t = set()
for i in s:
	t.add(i)
if len(t) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
di = {}
for i in range(len(str)):
	if str[i] in di:
		di[str[i]] += 1
	else:
		di[str[i]] = 1
if len(di) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def func():
	name = set(input())
	if len(name) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(func())


string = input()
new_string = ''
for i in range(len(string)):
	if string[i] in new_string:
		continue
	else:
		new_string += string[i]
if len(new_string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = set(x)
z = ''.join(y)
if len(z) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


try:
	un = input()
	if len(un) > 0 and len(un) <= 100 and (un.islower() == True):
		dc = list()
		for i in un:
			if i not in dc:
				dc.append(i)
		del i
		if len(dc) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
except:
	pass


x = input()
x = sorted(x)
counter = 0
cek = 0
for i in x:
	if cek != i:
		counter += 1
		cek = i
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
count = 0
existed = []
for letter in username:
	if letter not in existed:
		existed.append(letter)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
char = {}
for c in nick:
	char[c] = 1
if len(char) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
sum = 0
for c in range(ord('a'), ord('z') + 1):
	if chr(c) in s:
		sum += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


test = input()
new = ''
count = 0
testing = ''
for i in test:
	for j in test:
		if i == j:
			count += 1
	if count < 2:
		new += i
	else:
		if i not in testing:
			new += i
		testing += i
	count = 0
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
alphabeta = list('abcdefghijklmnopqrstuvwxyz')
k = 0
for alpha in alphabeta:
	if alpha in s:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
mylist = list(name)
mydict = {}
count = 1
for letter in mylist:
	mydict[letter] = count
if len(mydict) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


class Code:

	def __init__(self):
		self.s = input()

	def process(self):
		print('CHAT WITH HER!' if len(set(self.s)) % 2 == 0 else 'IGNORE HIM!')
code = Code()
code.process()


def boygirl(s):
	l = []
	for i in range(len(s)):
		if s[i] not in l:
			l.append(s[i])
	if len(l) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
boygirl(s)


user: str = input()
user: set = set(user)
size: int = len(user)
if size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = []
a.append(s[0])
bool = False
for i in s:
	for j in range(len(a)):
		if i == a[j]:
			bool = True
	if bool == False:
		a.append(i)
	bool = False
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
t = []
index = 0
while index < len(n):
	letter = n[index]
	if letter in n and letter not in t:
		t.append(letter)
	index = index + 1
dilisiter = ''
s = dilisiter.join(t)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
if len(s) <= 100:
	t = set(s)
	if len(t) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


a = input()
length = len(a)
name = ''.join(sorted(a))
count = 0
for i in range(1, length, 1):
	if name[i] == name[i - 1]:
		count += 1
	else:
		count = count
temp = length - count
if temp % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


setname = set(list(input()))
gorb = len(setname) % 2
if gorb == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def fastio():
	import sys
	from io import StringIO
	from atexit import register
	global input
	sys.stdin = StringIO(sys.stdin.read())
	input = lambda : sys.stdin.readline().rstrip('\r\n')
	sys.stdout = StringIO()
	register(lambda : sys.__stdout__.write(sys.stdout.getvalue()))
fastio()
MOD = 10 ** 9 + 7
I = lambda : list(map(int, input().split()))
if len(set(input())) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
l = list(s.strip())
for i in range(len(s)):
	for j in range(len(l)):
		if i != j and l[i] == l[j]:
			l[j] = '#'
cnt = 0
for li in l:
	if li != '#':
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
array = []
array.extend(word)
k = len(list(set(array)))
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
if len(set(s)) % 2 == 0:
	print('CHAT WITH HER!')
elif len(set(s)) % 2 == 1:
	print('IGNORE HIM!')


s = input()
d = {}
cn = 0
for c in s:
	if c not in d:
		cn += 1
		d[c] = 1
if cn % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
w = [c for c in s]
c = len(list(set(w)))
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
number = 0
number1 = 0
rep = ''
for i in range(len(x)):
	if x.count(x[i]) >= 1 and rep.find(x[i]) == -1:
		number += 1
		rep += x[i]
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
let = {}
for item in name.lower():
	if item in let:
		let[item] += 1
	elif item not in let:
		let[item] = 1
print('IGNORE HIM!' if len(let) % 2 == 1 else 'CHAT WITH HER!')


s = str(input())
sumalpha = 0
for i in range(97, 123):
	if s.find(chr(i)) != -1:
		sumalpha = sumalpha + 1
if sumalpha % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
temp = set(s)
if len(temp) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
i = 0
aset = set()
for i in range(len(username)):
	aset.add(username[i])
n = len(aset)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(string):
	if len(set(string)) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
line = input()
solve(line)


s = input()
d = {}
for i in s:
	d[i] = 1
if len(d) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	ls = set(list(input()))
	if len(ls) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


n = str(input()).lower()
listN = list(n)
listN.sort()
noDup = []
for i in listN:
	if i not in noDup:
		noDup.append(i)
if len(noDup) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = {}
b = input()
for elem in b:
	a[elem] = 1
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve():
	wrds = list(set(str(input()).lower()))
	if len(wrds) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(solve())


input_str = input()
mp = {}
for ch in input_str:
	if ch not in mp:
		mp[ch] = 1
if len(mp) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input().lower()
arr = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
total = [0] * 26
status = True
unik = 0
for i in range(len(name)):
	for j in range(len(arr)):
		if name[i] == arr[j]:
			total[j] += 1
for i in range(len(total)):
	if total[i] > 0:
		unik += 1
if unik % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mas = input()
ij = 0
jlh = 0
a = 0
b = 0
c = 0
d = 0
e = 0
f = 0
g = 0
h = 0
i = 0
j = 0
k = 0
l = 0
m = 0
n = 0
o = 0
p = 0
q = 0
r = 0
s = 0
t = 0
u = 0
v = 0
w = 0
x = 0
yy = 0
z = 0
hasil = 'CHAT WITH HER!'
hasil2 = 'IGNORE HIM!'
while ij < len(mas):
	y = mas[ij]
	if y == 'a':
		a = 1
	elif y == 'b':
		b = 1
	elif y == 'c':
		c = 1
	elif y == 'd':
		d = 1
	elif y == 'e':
		e = 1
	elif y == 'f':
		f = 1
	elif y == 'g':
		g = 1
	elif y == 'h':
		h = 1
	elif y == 'i':
		i = 1
	elif y == 'j':
		j = 1
	elif y == 'k':
		k = 1
	elif y == 'l':
		l = 1
	elif y == 'm':
		m = 1
	elif y == 'n':
		n = 1
	elif y == 'o':
		o = 1
	elif y == 'p':
		p = 1
	elif y == 'q':
		q = 1
	elif y == 'r':
		r = 1
	elif y == 's':
		s = 1
	elif y == 't':
		t = 1
	elif y == 'u':
		u = 1
	elif y == 'v':
		v = 1
	elif y == 'w':
		w = 1
	elif y == 'x':
		x = 1
	elif y == 'y':
		yy = 1
	elif y == 'z':
		z = 1
	ij += 1
jlh = int(a) + int(b) + int(c) + int(d) + int(e) + int(f) + int(g) + int(h) + int(i) + int(j) + int(k) + int(l) + int(m) + int(n) + int(o) + int(p) + int(q) + int(r) + int(s) + int(t) + int(u) + int(v) + int(w) + int(x) + int(yy) + int(z)
if jlh % 2 == 1:
	print(hasil2)
elif jlh % 2 == 0:
	print(hasil)


a = input()
l = 0
z = []
for i in a:
	if i not in z:
		z.append(i)
		l += 1
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
list = []
for i in range(26):
	list.append(False)
string = input()
for i in range(len(string)):
	list[ord(string[i]) - 97] = True
unique = 0
for i in range(26):
	if list[i]:
		unique += 1
if unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
sort_name = sorted(name)
count = 1
for i in range(0, len(name) - 1, 1):
	if sort_name[i] != sort_name[i + 1]:
		count += 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


b = input()
c = []
for letter in b:
	if letter not in c:
		c.append(letter)
	else:
		continue
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inn = input()
liste = []
for c in inn:
	if c not in liste:
		liste.append(c)
print('IGNORE HIM!') if len(liste) % 2 == 1 else print('CHAT WITH HER!')


def remove_duplicates(string):
	return ''.join(set(string))
string = input()
if len(remove_duplicates(string)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
string = ''
for str in word:
	if str not in string:
		string += str
if len(string) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = list(input())
l = len(s)
dic = {}
for i in range(l):
	if s[i] in dic:
		dic[s[i]] += 1
	else:
		dic[s[i]] = 1
x = len(dic)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_or_girl(name):
	result = 0
	hash = {}
	for char in name:
		if hash.get(char) != True:
			result += 1
			hash[char] = True
	if result % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
name = input()
boy_or_girl(name)


from re import split
name = input()
letters = set(split('', name))
letters.remove('')
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	mot = input()
	tab = [0] * 26
	dist = 0
	for lettre in mot:
		if tab[ord(lettre) - ord('a')] == 0:
			dist += 1
			tab[ord(lettre) - ord('a')] = 1
	if dist % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
	return
main()


a = input()
l = []
for e in a:
	l.append(e)
s = set(l)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ans = len(set(input().lower()))
if ans & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
no_duplicates = set(word)
n = len(no_duplicates)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
list = [i for i in username]
list.sort()
number_of_letters = 1
for i in range(1, len(username)):
	if list[i] != list[i - 1]:
		number_of_letters += 1
if number_of_letters % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import re
s = list(input())
dif = []
count = 0
for letter in s:
	if not letter in dif:
		count += 1
		dif.append(letter)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
lista = []
cont = 0
for char in n:
	if char not in lista:
		cont += 1
		lista.append(char)
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nameLen = len(set(input().lower()))
if nameLen % 2 == 0 & nameLen < 100:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
letras_usadas = []
for letra in username:
	if letra not in letras_usadas:
		letras_usadas.append(letra)
if len(letras_usadas) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input('')
nameLength = 0
letters = []
for i in name:
	if i not in letters:
		letters.append(i)
		nameLength += 1
	elif i in letters:
		continue
if nameLength % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
g = []
for i in x:
	if (i in g) == False:
		g.append(i)
if len(g) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = ''
name = ''
name = input()
for i in name:
	if i not in string:
		string += i
count = 0
for j in string:
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def count(string):
	arr = []
	for each in string:
		temp = 0
		if not each in arr:
			arr.append(each)
		else:
			continue
	ans = len(arr)
	return ans
string = input()
if count(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
distinctletters = len(set(word))
if len(set(word)) % 2 == 1 and distinctletters > 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = list(input())
seen = list()
for letter in a:
	if letter not in seen:
		seen.append(letter)
if len(seen) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
unique = ''

def is_even_string(string):
	return 1 if len(string) % 2 == 0 else 0
for letter in n:
	if letter not in unique:
		unique += letter
print('CHAT WITH HER!' if is_even_string(unique) else 'IGNORE HIM!')


entry = input()
distinct_chars = set(entry)
if len(distinct_chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = input()
counter = 0
for i in range(len(l)):
	if l[i] not in l[i + 1:]:
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def gender(n):
	x = len(n)
	s = len(n)
	for i in range(1, x):
		for j in range(0, i):
			if n[i] == n[j]:
				s = s - 1
				break
	if s % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
n = input('')
gender(n)


(n, e) = (list(input()), list())
t = len(n)
for c in n:
	if n.count(c) > 1 and e.count(c) == 0:
		t = t - n.count(c) + 1
		e.append(c)
print('CHAT WITH HER!' if t % 2 == 0 else 'IGNORE HIM!')


def boyorgirl(str):
	arr = []
	for s in range(len(str)):
		if arr.count(str[s]) == 0:
			arr.append(str[s])
	if len(arr) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
boyorgirl(input())


from __future__ import division, print_function
import os, sys
from io import BytesIO, IOBase
import math
if sys.version_info[0] < 3:
	from __builtin__ import xrange as range
	from future_builtins import ascii, filter, hex, map, oct, zip

def ii():
	return int(input())

def si():
	return input()

def mi():
	return map(int, input().strip().split(' '))

def msi():
	return map(str, input().strip().split(' '))

def li():
	return list(mi())

def dmain():
	sys.setrecursionlimit(1000000)
	threading.stack_size(1024000)
	thread = threading.Thread(target=main)
	thread.start()
abc = 'abcdefghijklmnopqrstuvwxyz'
abd = {'a': 0, 'b': 1, 'c': 2, 'd': 3, 'e': 4, 'f': 5, 'g': 6, 'h': 7, 'i': 8, 'j': 9, 'k': 10, 'l': 11, 'm': 12, 'n': 13, 'o': 14, 'p': 15, 'q': 16, 'r': 17, 's': 18, 't': 19, 'u': 20, 'v': 21, 'w': 22, 'x': 23, 'y': 24, 'z': 25}
mod = 1000000007
inf = float('inf')
vow = ['a', 'e', 'i', 'o', 'u']
(dx, dy) = ([-1, 1, 0, 0], [0, 0, 1, -1])

def getKey(item):
	return item[1]

def sort2(l):
	return sorted(l, key=getKey, reverse=True)

def d2(n, m, num):
	return [[num for x in range(m)] for y in range(n)]

def isPowerOfTwo(x):
	return x and (not x & x - 1)

def decimalToBinary(n):
	return bin(n).replace('0b', '')

def ntl(n):
	return [int(i) for i in str(n)]

def ncr(n, r):
	return factorial(n) // (factorial(r) * factorial(max(n - r, 1)))

def ceil(x, y):
	if x % y == 0:
		return x // y
	else:
		return x // y + 1

def powerMod(x, y, p):
	res = 1
	x %= p
	while y > 0:
		if y & 1:
			res = res * x % p
		y = y >> 1
		x = x * x % p
	return res

def gcd(x, y):
	while y:
		(x, y) = (y, x % y)
	return x

def isPrime(n):
	if n <= 1:
		return False
	if n <= 3:
		return True
	if n % 2 == 0 or n % 3 == 0:
		return False
	i = 5
	while i * i <= n:
		if n % i == 0 or n % (i + 2) == 0:
			return False
		i = i + 6
	return True

def read():
	sys.stdin = open('input.txt', 'r')
	sys.stdout = open('output.txt', 'w')

def main():
	s = str(input())
	t = len(set(s))
	if t % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')

def print(*args, **kwargs):
	(sep, file) = (kwargs.pop('sep', ' '), kwargs.pop('file', sys.stdout))
	at_start = True
	for x in args:
		if not at_start:
			file.write(sep)
		file.write(str(x))
		at_start = False
	file.write(kwargs.pop('end', '\n'))
	if kwargs.pop('flush', False):
		file.flush()
if sys.version_info[0] < 3:
	(sys.stdin, sys.stdout) = (FastIO(sys.stdin), FastIO(sys.stdout))
else:
	(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')
main()


name = input()
num = len(list(set(name)))
if num % 2 == 0 and num != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


u_name = input().strip()
if len(set(u_name)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


val = input()
res = set()
for i in range(len(val)):
	res.add(val[i])
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
p = 0
t = 0
i = 0
while i < len(a):
	p = 0
	j = i + 1
	while j < len(a):
		if a[i] == a[j]:
			p = 1
			break
		else:
			p = 0
			j += 1
	if p == 0:
		t += 1
	i += 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
Letters = []
total = 0
for i in range(0, len(username)):
	x = username[i]
	if x not in Letters:
		Letters.append(x)
		total = total + 1
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
lst = []
for e in n:
	if e not in lst:
		lst.append(e)
	else:
		continue
if len(lst) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


Q = dict()
a = input()
for i in a:
	if i not in Q:
		Q[i] = 1
	else:
		Q[i] += 1
if len(Q) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def problem(text):
	num = len(text)
	if num % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
text = set(input().rstrip())
problem(text)


lst = []
counter = 0
name = input()
for i in range(len(name)):
	if name[i] in lst:
		continue
	else:
		lst.append(name[i])
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
distinct = []
for l in s:
	if l in distinct:
		pass
	else:
		distinct.append(l)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p = input()
p = p.replace('', ' ')
p = p.split()
p.sort()
c = 0
for i in range(1, len(p)):
	if p[i] == p[i - 1]:
		c += 1
c = len(p) - c
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = input()
length = len(x)
i = 0
sum = 0
if length == 0 or length == 1:
	sum = length
else:
	for i in range(0, length - 1):
		try:
			x.index(x[i], i + 1, length)
		except ValueError:
			sum += 1
			pass
	sum += 1
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = str(input())
distinct = []
for x in st:
	if x not in distinct:
		distinct.append(x)
c = len(distinct)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def removeDuplicate(str, n):
	index = 0
	for i in range(0, n):
		for j in range(0, i + 1):
			if str[i] == str[j]:
				break
		if j == i:
			str[index] = str[i]
			index += 1
	return ''.join(str[:index])
str = input()
n = len(str)
k = len(removeDuplicate(list(str), n))
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


some_string = input()
my_set = set()
my_set.update(some_string)
if len(my_set) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
input = stdin.readline
a = set(input())
print('IGNORE HIM!') if not len(a) % 2 else print('CHAT WITH HER!')


n = input()
res = ''
cont = 0
for x in n:
	if res.count(x) == 0:
		cont += 1
	res += x
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(map(str, input()))
v = []
n = len(s)
for i in range(n):
	if s[i] not in v:
		v.append(s[i])
N = len(v)
if N % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
ans = 0
lis = []
for i in a:
	count = 0
	if i in lis:
		count = 0
	else:
		for b in range(len(a)):
			if i == a[b]:
				count += 1
			b += 1
	if count >= 1:
		lis.append(i)
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
k = 0
for i in range(len(x)):
	t = 0
	for j in range(i + 1, len(x)):
		if x[i] == x[j]:
			t = 1
			break
		else:
			t = 0
	if t == 0:
		k = k + 1
if k % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = [str(k) for k in input()]
c = []
h = int(len(c))
for i in a:
	if int(a.count(i)) > 1:
		if i in c:
			continue
		else:
			c.append(i)
			h += 1
	else:
		h += 1
if h % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
dic = {}
suma = 0
for key in string:
	dic[key] = 1
for key in dic:
	suma += dic[key]
if suma % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	S = set(str(input()))
	if len(S) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = input()
l = []
d = {}
for i in s:
	l.append(i)
for w in l:
	d[w] = d.get(w, 0) + 1
if len(d) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name1 = str(input())
user_name2 = set(user_name1)
user_name3 = ''.join(user_name2)
s = len(user_name3)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


W = []
S = str(input(''))
for i in S:
	if i not in W:
		W.append(i)
if len(W) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
t = []
for i in s:
	j = 0
	while j < len(t):
		if t[j] == i:
			break
		else:
			j += 1
	if j == len(t):
		t.append(i)
if len(t) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
a = input()
k = list(a)
r = Counter(k).keys()
k = len(r)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


value = input()
elems = set(value)
print('CHAT WITH HER!' if len(elems) % 2 == 0 else 'IGNORE HIM!')


user = str(input())
m = []
for i in user:
	m.append(i)
m.sort()
k = []
for i in range(0, len(m)):
	if m[i] != m[i - 1]:
		k.append(m[i])
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def decide(name):
	name = set(name)
	if len(name) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
name = input().strip()
res = decide(name)
print(res)


girdi = list(input())
number = 0
liste = []
for x in girdi:
	if not liste.__contains__(x):
		liste.append(x)
		number += 1
if number % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
x.lower()
s = x.split()
list = []
if len(x) <= 100:
	for i in s:
		for m in i:
			if m not in list:
				list.append(m)
l = len(list)
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import math
L = lambda : list(map(int, input().split()))
M = lambda : map(int, input().split())
I = lambda : int(input())
IN = lambda : input()

def s(a):
	print(''.join(list(map(str, a))))
n = set(IN())
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
letters = {}
for letter in name:
	letters[letter] = True
if len(letters.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
cnt = [0] * 128
for c in s:
	cnt[ord(c)] += 1
cntDistinct = 0
for i in cnt:
	if i > 0:
		cntDistinct += 1
if cntDistinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import re
s = input()
k = 0
h = ''
for i in s:
	if re.search(i, h):
		k += 1
	h += i
if (len(s) - k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


aiyub = input()
ali = set(aiyub)
if len(ali) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


X = input()
list = []
start = True
for letter in X:
	if start == True:
		list.append(letter)
		start = False
	elif letter not in list:
		list.append(letter)
if len(list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


use_letter = set()
n = 0
for c in input():
	if not c in use_letter:
		use_letter.add(c)
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
name = list()
for i in range(26):
	name.append(0)
for i in range(len(s)):
	name[ord(s[i]) - 97] = 1
if sum(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


S = input()
dic = {}
length = 0
for i in S:
	if i in dic.keys():
		dic[i] += 1
	else:
		dic[i] = 1
for i in dic.keys():
	length += 1
if length % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from time import process_time
from sys import argv

def solve():
	s = input()
	print('CHAT WITH HER!' if len(set(s)) % 2 == 0 else 'IGNORE HIM!')
if len(argv) > 1:
	startTime = process_time()
	solve()
	print('Elapsed Time:', process_time() - startTime)
else:
	solve()


a = []
m = input()
n = len(m)
for i in range(n):
	a.append(m[i])
x = set(a)
s = len(x)
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
chars = sys.stdin.readline()[:-1]
chars_set = set(chars)
if len(chars_set) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
l = [0] * 26
for i in range(len(string)):
	l[ord(string[i]) - 97] += 1
k = 0
for i in range(26):
	if l[i] > 0:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
a = set(t.lower())
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
nlen = len(n)
np = []
for i in range(nlen):
	if n[i] not in np:
		np.append(n[i])
nplen = len(np)
if nplen % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
b = ''.join(sorted(set(a), key=a.index))
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


list1 = []
flag = 0
username = list(input())
for char in username:
	if char not in list1:
		flag += 1
		list1.append(char)
		continue
if flag % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
num = 0
k = 0
for i in range(len(str)):
	for j in range(len(str)):
		if i >= j:
			continue
		elif str[j] == str[i]:
			k += 1
			break
		elif str[j] != str[i]:
			continue
num = len(str) - k
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = input()
data = [d for d in line]
data = list(set(data))
if len(data) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
myset = set(s)
arr = list(myset)
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
elif len(arr) % 2 != 0:
	print('IGNORE HIM!')


def main():
	name = input()
	addletter = True
	another_name = name[0]
	for i in range(1, len(name)):
		addletter = True
		for j in range(len(another_name)):
			if name[i] == another_name[j]:
				addletter = False
		if addletter:
			another_name = another_name + name[i]
	if len(another_name) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


name = input()
n = len(name)
count = 0
m = len(set(name))
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


j = list(input())
k = list()
count = 0
for i in j:
	if i not in k:
		k.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def solve():
	s = input()
	a = set((ch for ch in s))
	if len(a) % 2:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
solve()


a = input()
lst = list(a)
lst1 = []
for i in lst:
	if i not in lst1:
		lst1.append(i)
dili = ''
s = dili.join(lst1)
w = len(s)
if w % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
j = []
for i in username:
	j.append(i)
x = set(j)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
counter = 0
temp = ''
for i in range(len(s)):
	if s[i] not in temp:
		temp += s[i]
		counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input().lower()
b = []
for x in a:
	if x not in b:
		b.append(x)
		c = ''.join(b)
d = len(c)
if d % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
a = list(s)
b = []
for i in a:
	if i not in b:
		b.append(i)
v = len(b)
if v % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
print('CHAT WITH HER!' if not len(Counter(input())) & 1 else 'IGNORE HIM!')


import sys
lines = sys.stdin.readlines()
st = lines[0].strip()
k = len(set(list(st)))
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = input()
lst = {}
for i in line:
	lst[i] = 1
print('IGNORE HIM!' if len(lst) % 2 else 'CHAT WITH HER!')


s = input()
dict = {}
chars = 0
for c in s:
	if c in dict:
		continue
	else:
		chars += 1
		dict[c] = 0
if chars % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
q = 0
while True:
	if len(str) > 0:
		str = str.replace(str[0], '')
		q = q + 1
	else:
		if q % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')
		break


name = input()
rename = ''.join(set(name))
k = len(rename)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = input()
st = set(s)
cnt = len(st)
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input().lower()
unique = {}
len_of_name = len(name)
for char in name:
	unique[char] = True
if len(unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input('')
letters = []
counter = 0
for char in username:
	if char not in letters:
		counter += 1
	letters.append(char)
if counter % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


x = list(input())
c = 0
d = []
for i in range(0, len(x)):
	a = x[i]
	x.pop(i)
	b = list(x)
	x.insert(i, a)
	if a not in b:
		d.append(a)
	else:
		x.pop(i)
		x.insert(1, i)
if len(d) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from math import gcd, ceil
from collections import defaultdict as dd

def lcm(a, b):
	return a * b // gcd(a, b)

def inin():
	return int(input())

def inar():
	return list(map(int, input().split()))

def ar(element, size):
	return [element for i in range(size)]
from collections import Counter
a = list(input())
boy = len(set(a)) % 2
if boy:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = [char for char in input()]
r = []
i = 0
while len(n) > 0:
	if n[i] not in r:
		r.append(n[i])
	n.pop(i)
if len(r) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = list(input())
for x in range(len(str)):
	for i in range(x + 1, len(str)):
		if str[i] == str[x] and str[i] != 0:
			str[i] = 0
count = 0
for x in range(len(str)):
	if str[x] != 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


v = dict()
m = input()
for i in m:
	v[i] = v.get(i, 0) + 1
if len(v) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = str(input())
a = []
for i in range(0, 26):
	a.append(0)
for i in range(0, len(st)):
	a[ord(st[i]) - 97] = 1
count = 0
for i in range(0, 26):
	if a[i] == 0:
		count = count + 1
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = list(input())
c = len(n)
d = 1
a = []
for i in range(c):
	a.append(n[i])
a.sort()
for i in range(c - 1):
	if a[i] != a[i + 1]:
		d = d + 1
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
o = 0
l = []
for ch in s:
	if l.count(ch) == 0:
		l.append(ch)
		o = o + 1
if o % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
import os
import random
import re
import math

def solution(str1):
	setStr = set(str1)
	if len(setStr) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
str1 = input().strip()
solution(str1)


s = input()
f = {}
for char in s:
	if char in f:
		f[char] += 1
	else:
		f[char] = 1
if len(f) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
x = list(inp)

def my_function(x):
	return list(dict.fromkeys(x))
mylist = my_function(x)
n = len(mylist)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def check1(str):
	l = []
	l = list(set(list(str)))
	if len(l) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
str = input()
check1(str)


a = [0] * 27
s = input()
k = 0
for i in range(len(s)):
	a[ord(s[i]) - 97] += 1
for i in range(27):
	if a[i] > 0:
		k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import defaultdict
s = input()
freq = defaultdict(int)
for i in s:
	freq[i] += 1
if len(freq) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


__author__ = 'DK Wang'
s = input()
a = ['CHAT WITH HER!', 'IGNORE HIM!']
print(a[len(set(s)) % 2])


str = input()
num = 0
ch = [0] * 26
for i in str:
	if ch[ord(i) - ord('a')] == 0:
		ch[ord(i) - ord('a')] += 1
		num += 1
if num % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
done = []
ans = 0
for x in s:
	if x not in done:
		done.append(x)
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = ''
for it in s:
	if it not in ss:
		ss += it
	else:
		continue
if len(ss) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
res = 0
l = ''
for i in range(len(a)):
	if l.count(a[i]) == 0:
		l += a[i]
		res += 1
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


v = input()
w = list(v)
n = len(v)
for i in range(n):
	for j in range(i + 1, n):
		if w[i] == w[j] and w[i] != '$':
			w[j] = '$'
count = 0
for k in range(n):
	if w[k] != '$':
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input().lower()
c = 0
for i in range(97, 123):
	if chr(i) in w:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ar = [str(i) for i in input()]
ar = set(ar)
if len(ar) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def process(List):
	i: int = 0
	while i < len(List) - 1:
		j = i + 1
		while j < len(List):
			if List[i] == List[j]:
				List.pop(j)
				j -= 1
			j += 1
		i += 1
	if len(List) % 2:
		return False
	return True
text = input()
List = []
for i in text:
	List.append(i)
if process(List):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boyorgirl(nom):
	t = []
	c = 0
	for i in range(len(nom)):
		if nom[i] in t:
			i += 1
		else:
			t.append(nom[i])
			i += 1
			c += 1
	if c % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
boyorgirl(s)


name = input()
l = []
for (_, char) in enumerate(name):
	if char in l:
		continue
	else:
		l.append(char)
if len(l) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


l = list(input())
l1 = len(l)
for i in range(l1):
	for j in range(i + 1, l1):
		if l[i] != 0 and i != l1 - 1 and (l[i] == l[j]):
			l[j] = 0
x = 0
for i in range(l1):
	if l[i] != 0:
		x += 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s1 = ''
for i in range(len(s)):
	if s[i] not in s1:
		s1 += s[i]
sz = len(s1)
if sz % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = list(map(str, input().strip()))
modified_str = set(n)
if len(modified_str) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


text = input()
textfinal = ['']
append = True
for letter in text:
	a = letter
	for b in textfinal:
		if a == b:
			append = False
	if append == True:
		textfinal.append(a)
		append == False
	else:
		append = True
if (len(textfinal) - 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
den = 0
for i in range(len(s)):
	den += 1
	if s[i] in s[0:i]:
		den -= 1
		if i == 0:
			den += 1
if den % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def calc(s):
	F = 'CHAT WITH HER!'
	M = 'IGNORE HIM!'
	memo = {}
	for l in s:
		memo[l] = memo.get(l, 0) + 1
	if len(memo) % 2 != 0:
		return M
	return F
s = input()
print(calc(s))


name = input()
arr = set(name)
sex = len(arr)
if sex % 2 == 0:
	print('CHAT WITH HER!')
if sex % 2 != 0:
	print('IGNORE HIM!')


s = input()
d = set(s)
d = list(d)
ans = 'CHAT WITH HER!' if len(d) % 2 == 0 else 'IGNORE HIM!'
print(ans)


a = input('')
c = ''
for x in list(a):
	if x not in list(c):
		c += x
if len(c) % 2 == 0:
	print('chat with her!'.upper())
else:
	print('ignore him!'.upper())


n = str(input())
d = ''.join(set(n))
l = len(d)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = [0] * 256
distincts = 0
s = input()
for i in range(len(s)):
	ch[ord(s[i])] += 1
for i in range(256):
	if ch[i] != 0:
		distincts += 1
if distincts % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def check(string):
	a = [0] * 26
	for i in string:
		a[ord(i) - ord('a')] += 1
	S = 0
	for i in a:
		if i >= 1:
			S += 1
	return S
S = input()
if check(S) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


while True:
	a = input()
	b = len(set(a))
	if b % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	break


from collections import Counter
li = input()
count = 0
res = dict(Counter((i for sub in li for i in set(sub))))
dival = list(res.values())
for i in range(len(dival)):
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	while True:
		x = input()
		if len(x) > 0:
			continue
		else:
			break
except EOFError:
	pass
z = []
for i in x:
	z.append(i)
s = set(z)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
if str.isalpha() and str.__len__() <= 100 and str.islower():
	unique = []
	done = []
	for item in str:
		if done.__contains__(item):
			continue
		done.append(item)
		unique.append(item)
		continue
	if (unique.__len__() % 2).__eq__(0):
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


user = input('')
count = ''
for i in user:
	if i not in count:
		count += i
if len(count) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
lst = []
c = 0
for x in s:
	if lst.count(x) > 0:
		continue
	else:
		c += 1
		lst.append(x)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
letters = []
count = 0
for a in name:
	if a not in letters:
		letters = letters + [a]
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
seen = set()
count = 0
for letter in username:
	if letter not in seen:
		count += 1
	seen.add(letter)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
i = c = d = 0
found = False
while i < len(username):
	while d < len(username) and found == False:
		if username[i] == username[d]:
			found = True
		d += 1
	if found == True:
		username = username.replace(username[i], '')
	else:
		i += 1
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


palabra = input()
letras = {}
cantidad_total = len(palabra)
for letra in palabra:
	if letra in letras:
		letras[letra] += 1
		cantidad_total -= 1
	else:
		letras[letra] = 0
if cantidad_total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
name = n.lower()
set_name = set(name)
if len(set_name) % 2 != 0:
	print('IGNORE HIM!')
elif len(set_name) % 2 == 0:
	print('CHAT WITH HER!')


l = input()
m = []
n = 0
for i in l:
	if i not in m:
		m.append(i)
		n = n + 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = str(input())
list = [words for words in word]
if len(set(list)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
q = set()
for el in s:
	q.add(el)
if len(q) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def name(x):
	if x % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
a = input()
c = [0 for x in range(0, 27)]
for st in a:
	n = ord(st.lower()) - ord('a')
	c[n] = 1
count = 0
for x in c:
	if x == 1:
		count += 1
b = name(count)
print(b)


s = input()
count = 0
my_list = []
for i in range(len(s)):
	if s.count(s[i]) >= 2 and s[i] in my_list:
		count += 1
	my_list.append(s[i])
if (len(s) - count) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def MaleOrFemale(word):
	if len(set(word)) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
print(MaleOrFemale(input()))


import sys
import math
import os
import itertools
import string
import heapq
import _collections
from collections import Counter
from collections import defaultdict
from functools import lru_cache
import bisect
import re
import queue
from decimal import *

class Scanner:

	@staticmethod
	def int():
		return int(sys.stdin.readline().rstrip())

	@staticmethod
	def string():
		return sys.stdin.readline().rstrip()

	@staticmethod
	def map_int():
		return [int(x) for x in Scanner.string().split()]

	@staticmethod
	def string_list(n):
		return [input() for i in range(n)]

	@staticmethod
	def int_list_list(n):
		return [Scanner.map_int() for i in range(n)]

	@staticmethod
	def int_cols_list(n):
		return [int(input()) for i in range(n)]

class Math:

	@staticmethod
	def gcd(a, b):
		if b == 0:
			return a
		return Math.gcd(b, a % b)

	@staticmethod
	def lcm(a, b):
		return a * b // Math.gcd(a, b)

	@staticmethod
	def divisor(n):
		res = []
		i = 1
		for i in range(1, int(n ** 0.5) + 1):
			if n % i == 0:
				res.append(i)
				if i != n // i:
					res.append(n // i)
		return res

	@staticmethod
	def round_up(a, b):
		return -(-a // b)

	@staticmethod
	def is_prime(n):
		if n < 2:
			return False
		if n == 2:
			return True
		if n % 2 == 0:
			return False
		d = int(n ** 0.5) + 1
		for i in range(3, d + 1, 2):
			if n % i == 0:
				return False
		return True

def pop_count(x):
	x = x - (x >> 1 & 6148914691236517205)
	x = (x & 3689348814741910323) + (x >> 2 & 3689348814741910323)
	x = x + (x >> 4) & 1085102592571150095
	x = x + (x >> 8)
	x = x + (x >> 16)
	x = x + (x >> 32)
	return x & 127
MOD = int(1000000000.0) + 7
INF = int(1000000000000000.0)

def solve():
	S = Scanner.string()
	S = set(S)
	if len(S) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')

def main():
	solve()
main()


user = input()
counter = 0
string = ''
for char in user:
	if char not in string:
		counter += 1
		string += char
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


f = input()
f1 = []
for i in range(0, len(f)):
	if f[i] in f1:
		continue
	else:
		f1.append(f[i])
if len(f1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


words = input()
raw = []
for letter in words:
	if letter not in raw:
		raw.append(letter)
if len(raw) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
stra = str(input())
alpha = [False for i in range(26)]
for i in range(len(stra)):
	alpha[ord(stra[i]) - ord('a')] = True
print('CHAT WITH HER!') if alpha.count(True) % 2 == 0 else print('IGNORE HIM!')


x = input()
n = len(x)
i = 0
l = []
cnt = 0
while i < n:
	if not x[i] in l:
		l.append(x[i])
		cnt += 1
	i += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


sum = 0
a = input()
s = []
n = len(a)
for i in range(n):
	if a[i] not in s:
		s.append(a[i])
		sum += 1
	else:
		continue
if sum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
z = 0
c = 0
l = []
for a in range(0, len(s)):
	l.append(s[a])
for a in range(0, len(l)):
	for x in range(a + 1, len(l)):
		if l[a] == l[x]:
			l[x] = 0
for e in range(0, len(l)):
	if l[e] == 0:
		c = c + 1
if (len(l) - c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
input = sys.stdin.readline().rstrip()
uniqliterset = set()
for elem in input:
	uniqliterset.add(elem)
if len(uniqliterset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s1 = input()
x = []
for i in s1:
	if i not in x:
		x = x + [i]
if len(x) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


inp = input()
inplst = []
for char in inp:
	if char not in inplst:
		inplst.append(char)
	else:
		pass
if len(inplst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


foo = input()
mod = ''.join(set(foo))
if len(mod) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
seen = []
counter = 0
for i in word:
	if i not in seen:
		seen.append(i)
if len(seen) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
(arr, letters) = ([], [])
dchars = 0
for x in range(len(name)):
	if name[x] not in arr:
		arr.append(name[x])
		dchars += 1
if dchars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
x = 0
lst = []
for i in range(len(s)):
	flag = 0
	for j in range(len(lst)):
		if lst[j] == s[i]:
			flag = 1
	if flag == 0:
		lst.append(s[i])
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
n = len(name)
diffChart = []
for i in range(n):
	if name[i] not in diffChart:
		diffChart.append(name[i])
if len(diffChart) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


i = input()
c = ''
g = len(i)
for k in range(0, len(i)):
	if i[k] not in c:
		c = c + i[k]
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = list(input())
ans = len(set(word))
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
distinct = ''
for x in word:
	if x not in distinct:
		distinct += x
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
c = 0
li = []
for i in st:
	if i not in li:
		li.append(i)
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


chaine = input()
ch = set(chaine)
if len(ch) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


namel = input()
nb = ''
for i in range(len(namel)):
	if namel[i] not in nb:
		nb = nb + namel[i]
if len(nb) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
dict = {}
for i in range(97, 123):
	dict[chr(i)] = 0
for c in name:
	dict[c] += 1
distinct = 0
for i in range(97, 123):
	if dict[chr(i)]:
		distinct += 1
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
seen = set()
male = False
for i in range(len(name)):
	if name[i] in seen:
		pass
	else:
		seen.add(name[i])
		male = not male
if male == False:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
s = set(st)
l = len(s)
if l % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = input()
d = Counter(s)
count = 0
for val in d.values():
	if val == 1:
		count += 1
	else:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


txt = input()
unq = []
for char in txt[:]:
	if char not in unq:
		unq.append(char)
if len(unq) % 2 == 0:
	print('CHAT WITH HER!')
elif len(unq) % 2 != 0:
	print('IGNORE HIM!')


(z, zz) = (input, lambda : list(map(int, z().split())))
zzz = lambda : [int(i) for i in stdin.readline().split()]
(szz, graph, mod, szzz) = (lambda : sorted(zz()), {}, 10 ** 9 + 7, lambda : sorted(zzz()))
from string import *
from re import *
from collections import *
from queue import *
from sys import *
from collections import *
from math import *
from heapq import *
from itertools import *
from bisect import *
from collections import Counter as cc
from math import factorial as f
from bisect import bisect as bs
from bisect import bisect_left as bsl
from itertools import accumulate as ac
from itertools import permutations as permu

def lcd(xnum1, xnum2):
	return xnum1 * xnum2 // gcd(xnum1, xnum2)

def prime(x):
	p = ceil(x ** 0.5) + 1
	for i in range(2, p):
		if x % i == 0 and x != 2 or x == 0:
			return 0
	return 1

def dfs(u, visit, graph):
	visit[u] = True
	for i in graph[u]:
		if not visit[i]:
			dfs(i, visit, graph)
n = len(set(z()))
print('IGNORE HIM!' if n % 2 else 'CHAT WITH HER!')


def solve(s):
	S = set()
	for c in s:
		S.add(c)
	return 'CHAT WITH HER!' if len(S) % 2 == 0 else 'IGNORE HIM!'
s = input()
print(solve(s))


s = input()
l = list(s)
sch = 0
for i in range(len(l)):
	pch = 0
	for j in range(0, i):
		if l[i] == l[j]:
			pch += 1
		else:
			pass
	if pch > 0:
		pass
	else:
		sch += 1
if sch % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = input()
l = list(m)
sets = set(l)
if len(sets) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
d = list(dict.fromkeys(s))
c = len(d)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


j = str(input())
z = list(dict.fromkeys(j))
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
i = 0
x = 0
flag = False
while i < len(n) - 1:
	j = i + 1
	while j < len(n):
		if n[i] == n[j]:
			n = n[0:j] + n[j + 1:]
			j = j - 1
		j = j + 1
	i = i + 1
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


letras = []
id = list(input())
for l in id:
	if l not in letras:
		letras.append(l)
if len(letras) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ch = [0 for i in range(26)]
s = input()
c = 0
for i in s:
	c = c + int(ch[ord(i) - 97] == 0)
	ch[ord(i) - 97] = 1
if c & 1 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
cntList = [0] * 26
for c in s:
	num = ord(c) - ord('a')
	cntList[num] += 1
cnt = 0
for i in range(26):
	if cntList[i] != 0:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
ar = []
for x in range(len(string)):
	ar.append(string[x])
if len(set(ar)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
lis = list(name)
mylist = list(dict.fromkeys(lis))
if len(mylist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
visited = []
for i in range(len(s)):
	if s[i] not in visited:
		for j in range(i + 1, len(s)):
			if s[i] == s[j]:
				None
		visited.append(s[i])
c = len(visited)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
temp = 1
for i in range(0, len(word) - 1):
	if sorted(word)[i] != sorted(word)[i + 1]:
		temp = temp + 1
if temp % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


person = input()
z = set(person)
if len(z) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
b = set()
for l in n:
	b.add(l)
if (len(b) - 1) % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
t = set(s)
n = len(t)
if n % 2 == 0:
	flag = 0
else:
	flag = 1
if flag == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = str.lower(input())
appended_letters = []
if len(inp) <= 100:
	for i in inp:
		if i not in appended_letters:
			appended_letters.append(i)
	if len(appended_letters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
else:
	print('Enter a string with length less than 100.')


import sys
user = input()
c = 0
l = [0] * len(user)
for i in range(len(user)):
	for j in range(i + 1, len(user)):
		if l[i] != -1:
			if user[i] == user[j]:
				l[j] = -1
			else:
				continue
for i in range(len(l)):
	if l[i] == 0:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
diff = set()
for sim in name:
	if sim not in diff:
		diff.add(sim)
if len(diff) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main():
	s = str(input())
	count = 0
	s = sorted(s)
	for i in range(len(s)):
		try:
			if s[i] == s[i + 1]:
				count += 1
		except:
			pass
	if (len(s) - count) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
if __name__ == main():
	main()


while True:
	try:
		string = input()
		aux_dict = {}
		distincts = 0
		msg = ''
		for c in list(string):
			if not c in aux_dict:
				distincts += 1
				aux_dict[c] = True
		if distincts % 2 == 0:
			msg = 'CHAT WITH HER!'
		else:
			msg = 'IGNORE HIM!'
		print(msg)
	except EOFError:
		break


st1 = input()
s = {''}
for a in st1:
	s.add(a)
if len(s) % 2 == 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
t = list(a)
t.sort()
m = 0
for i in range(len(t) - 1):
	if t[i] == t[i + 1]:
		m = m + 1
n = len(t) - m
x = int(n % 2)
if x == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
user_input = input()
characterSet = set()
for char in user_input:
	characterSet.add(char)
if len(characterSet) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


usrnm = list(input())
done = []
count = 0
for i in usrnm:
	if i not in done:
		done.append(i)
		count += 1
	else:
		continue
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Boy(s):
	c = []
	for i in range(len(s)):
		if s[i] not in c:
			c.append(s[i])
	if len(c) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s = input()
Boy(s)


str_input = input()
char_dict = {}
for i in str_input:
	if i not in char_dict:
		char_dict[i] = 0
disinct = len(char_dict)
if disinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def funcao(string):
	letras = {}
	for l in string:
		if l not in letras:
			letras[l] = 1
	return letras
letras = funcao(input())
cont = len(letras.values())
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alphabet = []
counter = [0]
name = input()
letters_of_name = list(name)
for i in range(len(letters_of_name)):
	if letters_of_name[i] in alphabet:
		continue
	else:
		alphabet.append(letters_of_name[i])
if len(alphabet) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
result = set()
for i in s:
	result.update(i)
if len(result) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def ismale(s):
	di = {}
	for i in range(len(s)):
		if s[i] not in di.keys():
			di[s[i]] = 1
		else:
			di[s[i]] += 1
	return len(di) % 2 != 0
s = input()
if ismale(s):
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
s = input()
l = Counter(s)
k = [(k, v) for (k, v) in l.items()]
z = len(k)
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
c = ''.join(set(t))
l = len(c)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input()
c = 1
lst = sorted([x for x in str1])
for i in range(0, len(lst) - 1):
	if lst[i] != lst[i + 1]:
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
import math
import sys
from bisect import bisect, bisect_left, bisect_right

def input():
	return sys.stdin.readline().strip()

def INT():
	return int(input())

def MAP():
	return map(int, input().split())

def LIST(N=None):
	return list(MAP()) if N is None else [INT() for i in range(N)]

def mod():
	return 10 ** 9 + 7
s = input()
x = set(s)
if len(x) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def f(s):
	lst = list(s)
	uniq = list(dict.fromkeys(lst))
	if len(uniq) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(f(input()))


def boy_or_girl(username):
	if len(set([char for char in username])) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
boy_or_girl(input())


from collections import OrderedDict
s = input()
s = ''.join(OrderedDict.fromkeys(s))
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = str.lower(input())
z = len(''.join(set(n)))
if z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = list(input())
s_set = set(s)
s_len = len(s_set)
if s_len % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
input = sys.stdin.readline

def inp():
	return int(input())

def inlt():
	return list(map(int, input().split()))

def insr():
	s = input()
	return list(s[:len(s) - 1])
line = insr()
emptySet = set()
for elem in line:
	emptySet.add(elem)
if len(emptySet) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


dicc = {}

def op(str):
	for i in str:
		if i in dicc:
			dicc[i] = dicc[i] + 1
		else:
			dicc[i] = 1
	if len(dicc) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
str = input()
op(str)


s = input()
m = []
count = 0
for item in s:
	if item not in m:
		m.append(item)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
mn = set(s)
dlin = len(mn)
if dlin % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
word = input()
unique_words = set(word)
unique_word_count = len(unique_words)
if unique_word_count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


g = input()
l = []
f = []
for i in range(len(g)):
	l.append(g[i])
for i in range(97, 123):
	a = l.count(chr(i))
	f.append(a)
n = 0
i = 0
length = len(f)
while i < length:
	if f[i] == n:
		f.remove(f[i])
		length = length - 1
		continue
	i = i + 1
if len(f) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
list1 = []
for i in username:
	if list1.count(i) == 0:
		list1.append(i)
num = len(list1)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
vals = {}
for i in s:
	if i in vals:
		vals[i] += 1
	else:
		vals[i] = 0
nums = len(vals)
if nums % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


row = str(input())
char = []
for i in range(len(row)):
	if row[i] in char:
		continue
	else:
		char.append(row[i])
if len(char) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


init = list(input())
inis = list(set(init))
if len(inis) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = list(s)
p = set(k)
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def distincs(L):
	F = ''
	d = 0
	while len(L) > 0:
		L = L.replace(L[0], '')
		d += 1
	return d

def main():
	L = input()
	d = distincs(L)
	if d % 2 == 0:
		print('CHAT WITH HER!')
		exit()
	print('IGNORE HIM!')
	exit()
main()


def isGanjil(x):
	if x % 2 == 0:
		return False
	else:
		return True
a = input()
a = sorted(a)
lengthOfA = len(a)
total = 0
for i in range(0, lengthOfA):
	if i == 0:
		total = total + 1
	elif a[i] != a[i - 1]:
		total = total + 1
	else:
		total = total
if isGanjil(total):
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = list(input())
st_s = len(set(st))
print('CHAT WITH HER!') if st_s % 2 == 0 else print('IGNORE HIM!')


name = input()
draft = list()
count = int(0)
for letter in name:
	if letter in draft:
		continue
	else:
		draft.append(letter)
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = int(0)
a = int(97)
while a <= ord('z'):
	if s.count(str(chr(a))):
		k += 1
	a += 1
if not k % 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
s = set()
for char in st:
	s.add(char)
if len(s) & 1 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


cadena = input()
abecedario = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
numero = 0
longitud = len(cadena)
for i in range(26):
	nl = cadena.count(abecedario[i])
	if nl > 0:
		numero = numero + 1
if numero % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
i = 0
l = []
while i < len(name):
	l.append(name[i])
	i += 1
a = set(l)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


c = input()
l = []
for v in c:
	if not v in l:
		l.append(v)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
se = set(l)
n = len(se)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input()
i = 0
while i <= len(user) - 1:
	if user[i] in user[:i]:
		user = user[:i] + user[i + 1:]
		i = 0
	i += 1
if len(user) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
userinput = sys.stdin.readline().rstrip().lower()
x = len(list(set(userinput)))
int(x)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
c = {'@'}
for i in range(len(a)):
	c.add(a[i])
if (len(c) - 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string2 = input()
import string
string.ascii_lowercase
alphabet = list(string.ascii_lowercase)
string3 = list(string2)
counter = 0
for i in range(len(alphabet)):
	if alphabet[i] in string3:
		counter += 1
if counter % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def name(a):
	h = []
	c = 0
	for i in a:
		if i not in h:
			h += i
			c += 1
	x = int(c / 2) * 2
	if x == c:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
a = input()
name(a)


s = input()
a = []
jav = 0
for c in s:
	if c not in a:
		jav += 1
		a.append(c)
if jav % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
D = {}
for i in s:
	D[i] = 1
if len(D) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def numofdistchar(name):
	count = 0
	for i in range(len(name)):
		for j in range(i):
			if name[i] == name[j]:
				count += 1
				break
	return len(name) - count
name = input()
n = numofdistchar(name)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
l = len(s)
a = b = 0
for i in s:
	a = s.count(i)
	if a > 1:
		b = b + 1 / a
	else:
		b = b + a
b = round(b, 7)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	n = input()
	l = []
	for i in n:
		l.append(i)
	l = list(set(l))
	s = len(l)
	if s % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
except:
	pass


x = input()
x = x.lower()
count2 = set(x)
count = len(count2)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = list(str(input()))
word = list(dict.fromkeys(word))
lenght = len(word)
if lenght % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin
inp = str(stdin.readline()).replace('\n', '')
if len(inp) > 0 and len(inp) < 101:
	arr = []
	for el in inp:
		if not el in arr:
			arr.append(el)
	if len(arr) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
else:
	print('Error')


user = input()
lett = set()
for i in user:
	if i not in lett:
		lett.add(i)
if len(lett) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
name = input()
charLengthName = Counter(name)
differntChar = len(name)
for (k, v) in charLengthName.items():
	if v > 1:
		differntChar -= v + 1
if differntChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


b = input('')
a = ''.join(set(b))
if len(a) % 2 == 0 and a == a.lower():
	print('CHAT WITH HER!')
elif a == a.lower():
	print('IGNORE HIM!')


name = str(input())
copyName = []
length = len(name)

def search(arr, X):
	found = False
	for i in range(len(arr)):
		if arr[i] == X:
			found = True
			break
	return found
copyName.append(name[0])
for i in range(1, length):
	if not search(copyName, name[i]):
		copyName.append(name[i])
if len(copyName) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
dic = {}
a = 0
for i in range(len(x)):
	if x[i] not in dic:
		dic[x[i]] = 1
	else:
		dic[x[i]] += 1
for (x, y) in dic.items():
	a += 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input('')
for char in name:
	dup = name.count(char)
	if dup > 1:
		new = str(set(name))
	else:
		new = str(set(name))
if len(new) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
num = [0] * 26
for i in range(len(name)):
	num[ord(name[i]) - ord('a')] = max(1, num[ord(name[i]) - ord('a')])
print('CHAT WITH HER!') if sum(num) % 2 == 0 else print('IGNORE HIM!')


S = set(input())
L = len(S)
if L % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ctr = 0
g = ''
lis = []
for i in s:
	if i not in lis:
		lis.append(i)
		ctr += 1
print('CHAT WITH HER!' if ctr % 2 == 0 else 'IGNORE HIM!')


string = input()
had = ''
total = 0
for i in range(len(string)):
	if string[i] not in had:
		total += 1
	had += string[i]
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def main():
	line = sys.stdin.readline().strip()
	if len(set(line)) % 2 == 0:
		sys.stdout.write('CHAT WITH HER!')
	else:
		sys.stdout.write('IGNORE HIM!')
main()


name = input().strip()
n = len(name)
distinctChars = n
for i in range(n):
	ch = name[i]
	if name.count(ch, i) > 1:
		distinctChars -= 1
if distinctChars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
letters = []
counter = 0
for i in range(len(word)):
	if word[i] not in letters:
		counter += 1
		letters.append(word[i])
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
news = list(s)
newset = set(news)
if len(newset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


Name = input()
count = 0
j = 0
s = 0
loop = Name.__len__() - 1
for i in range(Name.__len__()):
	for j in range(loop):
		if Name[i] == Name[j + 1 + s]:
			count += 1
			break
		else:
			continue
	loop -= 1
	s += 1
if (Name.__len__() - count) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = []
cum = 0
for i in range(len(s)):
	if not s[i] in a:
		a.append(s[i])
		cum += 1
if cum % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
string = list(str(input()))
result = []
for x in range(len(string)):
	if not string[x] in result:
		result.append(string[x])
print('CHAT WITH HER!' if len(result) % 2 == 0 else 'IGNORE HIM!')


import string
letter_count = dict(((key, 0) for key in string.ascii_lowercase))
s = list(input())
count = 0
for i in range(len(s)):
	if letter_count[s[i]] == 0:
		letter_count[s[i]] += 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
name = sys.stdin.read()
l = len(set(name.strip()))
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


chars = input()
newChars = set()
for currentElement in chars:
	newChars.add(currentElement)
if len(newChars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = len(s)
b = []
for i in range(a):
	if s[i] not in b:
		b.append(s[i])
c = len(b)
if c % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = list(input())
checklist = []
for el in s:
	if el not in checklist:
		checklist.append(el)
if len(checklist) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
arr = []
for i in range(len(s)):
	arr.append(s[i])
b = len(set(arr))
if b % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
s = {0}
for i in range(len(n)):
	s.add(n[i])
t = len(s) - 1
if t % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


p = input()
count = 0
for i in range(97, 123):
	if chr(i) in p:
		count += 1
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input().split())
x = set(s)
if len(x) % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import math
s = input()
ch = []
i = 0
while i < 30:
	ch.append(0)
	i += 1
for j in s:
	ch[ord(j) - ord('a')] += 1
i = 0
res = 0
while i < 30:
	if ch[i] > 0:
		res += 1
	i += 1
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
x = list()
for i in range(len(name)):
	x.append(name[i])
x.sort()
count = 1
for i in range(len(x) - 1):
	if x[i] != x[i + 1]:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
print(['IGNORE HIM!', 'CHAT WITH HER!'][len(set(a)) % 2 == 0])


a = input()
characters = set()
for character in a:
	characters.add(character)
result = 'CHAT WITH HER!' if len(characters) % 2 == 0 else 'IGNORE HIM!'
print(result)


n = input()
l = [0] * 255
count = 0
for i in n:
	if not l[ord(i)]:
		l[ord(i)] = 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


h = input()
b = []
for i in range(len(h)):
	if h[i] in b:
		continue
	else:
		b.append(h[i])
if len(b) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = list(input())
letter = []
for i in range(len(name)):
	if name[i] not in letter:
		letter.append(name[i])
	else:
		pass
print('CHAT WITH HER!' if len(letter) % 2 == 0 else 'IGNORE HIM!')


name = input('')
sortedName = list(name)
sortedName.sort()
count = 0
for i in range(len(sortedName)):
	for x in range(i + 1, len(sortedName)):
		if sortedName[i] is sortedName[x]:
			sortedName[x] = ' '
count = 0
for i in sortedName:
	if i is not ' ':
		count += 1
if count % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
z = []
for i in range(int(len(a))):
	z.append(a[i])
z = sorted(z)
b = '2'
chet = 0
for i in range(int(len(z))):
	if z[i] != b:
		chet += 1
		b = z[i]
	else:
		b = z[i]
c = chet % 2
if c == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
unique = []
to_remove = []
for i in username:
	if i not in unique:
		unique.append(i)
	elif i not in to_remove:
		to_remove.append(i)
for i in to_remove:
	unique.remove(i)
if (len(unique) - len(to_remove)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


sol = ['CHAT WITH HER!', 'IGNORE HIM!'][len({*input()}) % 2]
print(sol)


string = input('')
dictionary = {}
for s in string:
	count = string.count(s)
	dictionary[s] = count
counter = len(dictionary.keys())
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
f = 'CHAT WITH HER!'
m = 'IGNORE HIM!'
u = []
for x in range(len(n)):
	if n[x] not in u:
		u.append(n[x])
if len(u) % 2 == 0:
	print(f)
else:
	print(m)


n = input()
k = 'qwertyuiopasdfghjklzxcvbnm'
m = 0
for c in k:
	if n.find(c) != -1:
		m += 1
if m % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
i = 0
liste = []
while i < len(name):
	if name[i] not in liste:
		liste.append(name[i])
	i = i + 1
if len(liste) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
lst = []
for i in range(0, 26):
	lst.append(0)
for i in s:
	lst[ord(i) - 97] += 1
cnt = 0
for i in lst:
	if i != 0:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


txt = list(input())
txt.sort()
cont = 1
last = txt[0]
tam = len(txt)
for x in range(1, tam):
	if txt[x] != last:
		last = txt[x]
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
distinct_letter = ''.join(set(word))
lenth = len(distinct_letter)
if lenth % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
dict_a = {}
res = 0
for i in a:
	if i not in dict_a:
		dict_a[i] = 1
		res += 1
	else:
		dict_a[i] = 1
if res % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	name = input()
	unique_letters = []
	for letter in name:
		if letter not in unique_letters:
			unique_letters.append(letter)
	if len(unique_letters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


s = list(input())
ss = list(set(s))
n = ss.__len__()
if n % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


p = input()
s = list(p)
for i in range(len(s)):
	s[i] = ord(s[i])
s.sort()
i = 0
while i < len(s) - 1:
	if s[i] == s[i + 1]:
		del s[i]
		i = 0
	else:
		i = i + 1
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
set0 = set()
for item in username:
	set0.add(item)
length = len(set0)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
l1 = []
for i in x:
	l1.append(ord(i))
if len(list(set(l1))) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


print(['IGNORE HIM!', 'CHAT WITH HER!'][len({*input()}) % 2 == 0])


s = str(input())
l = list(s)
t = set(l)
k = list(t)
m = len(k)
if m % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
from collections import Counter as C
if len(set(input())) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


naam = input()
lijst = []
for i in range(0, len(naam)):
	if naam[i] in lijst:
		pass
	else:
		lijst.append(naam[i])
if len(lijst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


temp = input()
l1 = []
occur = []
for i in range(0, len(temp)):
	c = temp[i]
	check = c in l1
	if check == True:
		continue
	else:
		l1.append(c)
if len(l1) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
newstring = string.lower()
d = []
for i in newstring:
	if i not in d:
		d.append(i)
n = len(d)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import os
import sys
import re
import itertools
import functools
import operator
print('CHAT WITH HER!' if len(set(input())) % 2 == 0 else 'IGNORE HIM!')


line = input()
ls = []
sum = 0
for i in line:
	if i not in ls:
		ls.append(i)
if len(ls) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
y = []
for c in range(len(x)):
	y.append(x[c])
y.sort()
z = 0
for c in range(len(x)):
	if len(x) == c + 1:
		break
	if y[c] == y[c + 1]:
		z = z + 1
z = len(x) - z
if z / 2 == int(z / 2):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
dictionary = {}
for i in str:
	dictionary[i] = dictionary.get(i, 0) + 1
if len(dictionary) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
n = input()
c = 0
count = Counter(n)
for i in count:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(s):
	d = {}
	for c in s:
		if c in d.keys():
			d[c] += 1
		else:
			d[c] = 0
	if len(d.keys()) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'

def main():
	s = input()
	print(solve(s))
main()


inp = input()
visited = []
count = 0
for i in inp:
	if i not in visited:
		visited.append(i)
		count += 1
print('CHAT WITH HER!' if count % 2 == 0 else 'IGNORE HIM!')


word = input()
list_of_word = set(word)
size = len(list_of_word)
if size % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from collections import Counter
word = input()
c = Counter(list(word))
ans = list(filter(lambda x: x != 1, c.values()))
print('IGNORE HIM!' if len(word) - sum(ans) + len(ans) & 1 else 'CHAT WITH HER!')


a = list(input())
p = len(a)
i = 0
while i < p:
	k = a[i]
	l = 0
	while a.count(k) > 1:
		a.remove(k)
		if l == 0:
			i -= 1
		l += 1
	p = len(a)
	i += 1
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
name = []
for i in user_name:
	name.append(i)
name2 = list(set(name))
k = len(name2)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
counter = 0
for a in range(0, len(x)):
	if x[a] not in x[a + 1:]:
		counter += 1
if counter % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


user = str(input())
n = len(user)
char = []
for i in range(n):
	if user[i] not in char:
		char.append(user[i])
	else:
		continue
k = len(char)
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
b = []
for x in range(len(a)):
	if a[x] not in b:
		b.append(a[x])
n = len(b)
if n % 2 == 1 or n == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


userName = input()
characters = set()
for x in userName:
	characters.add(x)
numOfDistChar = len(characters)
if numOfDistChar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


strr = input()
names = dict()
for i in strr:
	names[i] = names.get(i, 0) + 1
for x in names:
	if names[x] > 1:
		names[x] = 1
if len(names) % 2 == 0:
	print('CHAT WITH HER!')
elif len(names) % 2 > 0:
	print('IGNORE HIM!')


def countdistinct(u):
	cf = 0
	for each in u:
		co = u.count(each)
		cf = cf + (co - 1) / co
	return len(u) - cf

def bog(cd):
	if 0.5 >= cd % 2 >= 0 or 1.5 <= cd % 2 < 2:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'

def main():
	u = input()
	print(bog(countdistinct(u)))
main()


def main():
	a = input()
	simvols = []
	for x in a:
		if x in simvols:
			pass
		else:
			simvols.append(x)
	if len(simvols) % 2 == 1:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')
main()


username = input('')
lst = list()
for char in username:
	if char not in lst:
		lst.append(char)
lenth = len(lst)
if lenth % 2 == 0:
	print('CHAT WITH HER!')
elif lenth % 2 != 0:
	print('IGNORE HIM!')


string1 = input()
l = []
k = 0
for i in range(len(string1)):
	b = string1[i]
	if b in l:
		continue
	else:
		l.append(b)
		k = k + 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


alphabet = 'abcdefghijklmnopqrstuvwxyz'
name = input()
nameLen = 0
for letter in alphabet:
	if letter in name:
		nameLen += 1
if nameLen % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
s = input()
cnt = int()
d = dict(collections.Counter(s))
l = list(d.values())
if len(l) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
alphabet = 'abcdefghijklmnopqrstuvwxyz'
n = 0
for i in range(26):
	if name.find(alphabet[i]) == -1:
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


val = input()
check = {}
count = 0
for i in val:
	if i in check.keys():
		check[i] = check[i] + 1
	else:
		check[i] = 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
lst = []
l = []
for i in s:
	lst.append(i)
for k in lst:
	if k not in l:
		l.append(k)
ln = len(l)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = [0] * 26
k = len(s)
for i in s:
	a[ord(i) - 97] = 1
ans = 0
for i in range(26):
	if a[i] is 1:
		ans += 1
if ans % 2 is 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


v = []
text = input()
for i in text:
	v.append(i)
myset = set(v)
print('IGNORE HIM!') if len(myset) % 2 else print('CHAT WITH HER!')


def solve(*, username: str) -> str:
	return 'CHAT WITH HER!' if len(set(username)) % 2 == 0 else 'IGNORE HIM!'
username = input()
result = solve(username=username)
print(result)


ent = input()
lista = []
for e in ent:
	if e not in lista:
		lista.append(e)
if len(lista) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
n1 = list(n)
n2 = set(n1)
ln = len(n2)
if ln % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


b = input().split()
c = list(''.join(b))
c.sort()
count = len(c)
for i in range(len(c)):
	if i + 1 < len(c) and c[i] == c[i + 1]:
		count = count - 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = len(set(list(map(ord, list(input())))))
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
l2 = set(l)
l3 = list(l2)
ll = len(l3)
if ll % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nickname = input()
used_chars = set()
for letter in nickname:
	if letter not in used_chars:
		used_chars.add(letter)
if len(used_chars) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = input()
S = set()
for i in st:
	S.add(i)
l = len(S)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
hash = {}
c = 0
for i in s:
	if i not in hash:
		hash[i] = True
		c += 1
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
listhasil = []
for z in a:
	if z not in listhasil:
		listhasil.append(z)
jumlah = len(listhasil)
if jumlah % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
c = []
for i in s:
	c.append(i)
k = set(c)
o = len(k)
if o % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


chars = set()
nickname = input()
for char in nickname:
	chars.add(char)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = list(input())
letter = []
for x in range(len(name)):
	if (name[x] in letter) == False:
		letter.append(name[x])
if len(letter) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
a = {}
ans = 0
for i in s:
	try:
		a[i] += 1
	except:
		ans += 1
		a[i] = 1
print('IGNORE HIM!' if ans & 1 else 'CHAT WITH HER!')


naam = input()
naam2 = []
lijst = []
for i in reversed(naam):
	naam2.insert(0, i)
	if i not in lijst:
		lijst.insert(0, i)
if len(lijst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = ' '
l = l.join(s)
l = l.split()
name = set(l)
if len(name) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input().rstrip()
x = list(s)
X = list(set(s))
F = len(X)
if F % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
distinctW = ''
for ch in w:
	if ch not in distinctW:
		distinctW += ch
if len(distinctW) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys, bisect, copyreg, copy, statistics, os

def inp():
	return sys.stdin.readline().strip()

def IIX():
	return (int(x) for x in sys.stdin.readline().split())

def II():
	return int(inp())

def LI():
	return list(map(int, inp().split()))

def L(x):
	return list(x)

def out(var):
	return sys.stdout.write(str(var))
s = L(inp())
c = set(s)
if len(c) % 2 == 1:
	out('IGNORE HIM!')
else:
	out('CHAT WITH HER!')


def main():
	s = input()
	d = {1: 'IGNORE HIM!', 0: 'CHAT WITH HER!'}
	print(d[len(set(s)) % 2])
main()


def ans(arr):
	temp = set(arr)
	if len(temp) % 2:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
s = list(input())
print(ans(s))


(name, diffChars) = (input(), 0)
(ans1, ans2) = ('CHAT WITH HER!', 'IGNORE HIM!')
alphabets = [0 for i in range(26)]
for let in name:
	if alphabets[ord(let) - ord('a')] == 0:
		alphabets[ord(let) - ord('a')] += 1
		diffChars += 1
print(ans1 if diffChars % 2 == 0 else ans2)


name = input()
lst = list()
i = 0
length = len(name)
while i < length:
	if name[i] not in lst:
		lst.append(name[i])
	i = i + 1
x = len(lst)
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


line = str(input())
temp_list = [it for it in line]
if len(list(set(temp_list))) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


line = input()
L = ''
for i in line:
	if i not in L:
		L += i
if len(L) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
username = sorted(username)
uniqueCount = 0
for i in range(len(username)):
	if username[i] != username[i - 1]:
		uniqueCount += 1
if uniqueCount % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()
char = list(username)
count = 0
for element in char:
	k = 1
	c = char.count(element)
	while k <= c:
		char.remove(element)
		k += 1
	char.insert(0, ' ')
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = input()
no_duplicates = ''.join(dict.fromkeys(nickname))
if len(no_duplicates) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def distintCharacters(string):
	count = 0
	comparable = ''
	for c in string:
		if not c in comparable:
			count += 1
			comparable += c
	return count
if distintCharacters(input()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
lst = []
lstx = []
for i in w:
	lst.append(i)
	lst.sort()
for j in range(1, len(lst)):
	if lst[j - 1] != lst[j]:
		lstx.append(lst[j - 1])
if (len(lstx) + 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def tlist(a):
	length = len(a)
	lis = list(range(length))
	for i in range(length):
		lis[i] = a[i]
	return lis

def counta(a):
	a = tlist(a)
	lib = dict()
	count = 0
	for char in a:
		if char not in lib:
			lib[char] = 1
			count += 1
	return count

def quote(a):
	if counta(a) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(quote(input()))


s = input().strip()
lh = [0] * 26
for x in s:
	index = ord(x) - ord('a')
	lh[index] += 1
c = 0
for x in lh:
	if x != 0:
		c = c + 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st1 = input()
total = 0
temp = []
for l in st1:
	if l not in temp:
		total += 1
		temp.append(l)
if total % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nm = input()
l = len(nm)
thisset = set()
for i in range(0, l, 1):
	thisset.add(nm[i])
length = len(thisset)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


j = input()
g = sorted(j)
ilk = g[0]
t = 1
for i in g[1:]:
	if i != ilk:
		t = t + 1
	ilk = i
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import math
s = input()
a = []
for i in s:
	if i not in a:
		a.append(i)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
h = {}
cnt = 0
for i in s:
	h[i] = h.get(i, 0) + 1
for (i, j) in h.items():
	cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
l = len(n)
a = []
b = []
for i in range(l):
	a.append(n[i])
for i in range(l):
	if a[i] not in b:
		b.append(a[i])
lt = len(b)
if lt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


uname = input()
chars = []
for ch in uname:
	if ch not in chars:
		chars.append(ch)
if len(chars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
a = input()
b = Counter(a)
c = []
for i in b.keys():
	c.append(i)
if len(c) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = list()
if s.islower() == True and len(s) < 101:
	for i in range(len(s)):
		a = a + [s[i]]
	ss = set(a)
	if len(ss) % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')


name = input()
arr = [0]
for i in range(25):
	arr.append(0)
j = 0
for i in range(len(name)):
	if arr[ord(name[i]) - 97] == 0:
		j += 1
		arr[ord(name[i]) - 97] = j
if j % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
h = 'CHAT WITH HER!'
v = ''
for i in n:
	if i not in v:
		v = v + i
if len(v) % 2 != 0:
	h = 'IGNORE HIM!'
print(h)


t = str(input().strip())
x = []
for a in t:
	if a not in x:
		x.append(a)
if len(x) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def getlist(tcast):
	return [tcast(x) for x in input().strip().split(' ')]

def getvar(tcast):
	return tcast(input().strip())
name = getvar(str)
out = len(set(name)) % 2 == 0
print('CHAT WITH HER!' if out else 'IGNORE HIM!')


(s, k, n) = (input(), [], 0)
for x in range(len(s)):
	m = 0
	for y in k:
		if s[x] == y:
			m = 1
	if m == 0:
		k.append(s[x])
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = input()
if (len(l) - sum([max(l.count(chr(i)) - 1, 0) for i in range(ord('a'), ord('z') + 1)])) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
s1 = set(s)
cnt = 0
for i in s1:
	cnt += 1
print('CHAT WITH HER!' if cnt % 2 == 0 else 'IGNORE HIM!')


s = input()
slis = list(s)
ulis = list(set(slis))
if len(ulis) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string

def count_distinct_letters(word):
	lowercase = string.ascii_letters[:26]
	distinct_letters = 0
	for letter in lowercase:
		letter_count = word.count(letter)
		if letter_count > 0:
			distinct_letters += 1
	return distinct_letters
username = input()
distinct_letters = count_distinct_letters(username)
if distinct_letters % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nickname = input()
letters = []
counter = 0
for letter in nickname:
	if letter in letters:
		continue
	else:
		counter += 1
		letters.append(letter)
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input('')
name = sorted(name)
a = 0
for (i, name_check) in enumerate(name):
	if name[i] != name[i - 1]:
		a = a + 1
if a % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


vards = input()
burti = []
summa = 0
for i in range(0, 26):
	burti.append(0)
for b in vards:
	burti[ord(b) - 97] = 1
for x in burti:
	summa = summa + x
if summa % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = 'abcdefghijklmnopqrstuvwxyz'
f = [0 for i in a]
s = input()
kq = 0
for i in range(len(s)):
	if f[a.find(s[i])] == 0:
		kq += 1
		f[a.find(s[i])] = 1
if kq % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s2 = str(input())
s1 = list(s2)
s = set(s1)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = str(input())
distinct = []
count = 0
for i in username:
	if i not in distinct:
		distinct.append(i)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


k = input()
(a, p) = ([], '')
for i in k:
	a.append(i)
for i in range(len(a)):
	for j in range(len(a)):
		if i != j and a[i] == a[j]:
			a[i] = ''
	p = p + a[i]
if len(p) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
charset = set()
for ch in name:
	charset.add(ch)
if len(charset) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


S = input()
NewS = ''
for i in S:
	if i not in NewS:
		NewS += i
if len(NewS) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


creature = input()

def distinct(word):
	unique = []
	for item in word:
		if item not in unique:
			unique.append(item)
	return unique

def chat(name):
	if len(distinct(name)) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(chat(creature))


x = str(input())
y = []
for i in x:
	y.append(i)
z = set(y)
ans = len(z)
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = ' '.join(input()).split()
lst = []
for each in name:
	if each not in lst:
		lst.append(each)
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = {}
for i in range(len(x)):
	if x[i] in y:
		y[x[i]] = str(int(y[x[i]]) + 1)
	else:
		y[x[i]] = 1
if len(y) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


try:
	s = str(input())
	k = set(s)
	if len(k) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
except:
	pass


username = input()
used = set()
count = 0
for l in username:
	if not l in used:
		used.add(l)
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def func(s):
	s1 = set(map(str, s))
	ans = len(s1)
	if ans % 2 != 0:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
print(func(input()))


n = input()
k = 0
for i in range(len(n)):
	for j in range(i + 1, len(n)):
		if n[i] == n[j]:
			k += 1
			break
t = len(n) - k
if t > 0 and t % 2 == 0:
	print('CHAT WITH HER!')
elif t > 0 and t % 2 == 1:
	print('IGNORE HIM!')


x = str(input())
set1 = set(x)
y = len(set1)
if y % 2 == 0:
	print('CHAT WITH HER!')
if y % 2 == 1:
	print('IGNORE HIM!')


name = input()
ncount = 1
for i in range(len(name) - 1):
	if name[i + 1] in name[0:i + 1]:
		pass
	else:
		ncount = ncount + 1
if ncount % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def gender(string):
	n = len(set(string))
	if n % 2 == 1:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
string = input()
print(gender(list(string)))


import sys
try:
	sys.stdin = open(sys.path[0] + '\\input.txt', 'r')
	sys.stdout = open(sys.path[0] + '\\output.txt', 'w')
except Exception as e:
	pass
s = input()
if len(set(s)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


__author__ = 'Utena'
n = input()
if len(set(n)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


class Solution:

	def __init__(self, data):
		print(data)

	def func(self):
		pass
n = input()
ctr = 0
arr = []
for i in n:
	if i not in arr:
		arr.append(i)
		ctr += 1
if ctr % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
unique = set(s.lower())
if len(unique) <= 100 and unique != '':
	if ' ' not in unique:
		if len(unique) % 2 == 0:
			print('CHAT WITH HER!')
		else:
			print('IGNORE HIM!')


inp = list(input())
assert len(inp) <= 100
if len(set(inp)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
y = set({})
count = 0
for i in x:
	if i in y:
		pass
	else:
		count = count + 1
		y.add(i)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
m = set()
for letter in s:
	m.add(letter)
if len(list(m)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
a = input()
li_a = list(a)
set_li = list(set(li_a))
set_li.sort(key=li_a.index)
str_co = ''.join(set_li)
if len(str_co) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def Main():
	sname = input()
	cnt = [0] * 27
	for i in range(len(sname)):
		cnt[ord(sname[i]) - 97] += 1
	ndiff = 0
	for i in range(27):
		if cnt[i] > 0:
			ndiff += 1
	if ndiff % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
Main()


n = input()
seen = {}
lst = []
for i in n:
	if i not in seen:
		lst.append(i)
	seen[i] = True
if len(lst) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
distChars = []

def charUsed(character):
	for distinct in distChars:
		if character == distinct:
			return True
	return False
for char in username:
	if not charUsed(char):
		distChars.append(char)
if (len(distChars) / 2.0).is_integer():
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


try:
	st = input()
	st = set(st)
	if len(list(st)) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
	pass
except Exception:
	pass


user_input = input().lower()
uni_user_input = list(set(user_input))
if len(uni_user_input) % 2 != 0:
	print('IGNORE HIM!')
elif len(uni_user_input) % 2 == 0:
	print('CHAT WITH HER!')


a = input().upper()
b = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
i = 0
for char in b:
	if char in a:
		i += 1
if i % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


mys = input()
myset = set(mys)
if len(myset) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()
list = []
for x in username:
	if x in list:
		pass
	else:
		list.append(x)
number = len(list)
if int(number) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


appear = [False for i in range(26)]
data = input()
cnt = 0
for i in data:
	if appear[ord(i) - ord('a')] == True:
		continue
	cnt += 1
	appear[ord(i) - ord('a')] = True
if cnt & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


A = list(input())
B = []
for le in A:
	if le not in B:
		B.append(le)
c = len(B)
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
num = len(s)
o = 0
for i in range(len(s)):
	k = s.count(s[i])
	if k == 1:
		o += 1
	else:
		o += 1 / k
if o - int(o) > 0.5:
	x = int(o) + 1
else:
	x = int(o)
if x % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


word = input()
List = []
for x in word:
	List.append(x)
if len(set(List)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
i = 0
s1 = ''
for x in s:
	if s.index(x) == i:
		s1 += x
	i += 1
if len(s1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
non_duplicates = []
for i in name:
	if i not in non_duplicates:
		non_duplicates.append(i)
count = len(non_duplicates)
if count % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import collections
s = input()
count = collections.Counter(s)
if len(count) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
lst = []
i = 0
z = 0
while i < len(x):
	if x[i] in lst:
		i += 1
		continue
	else:
		lst.append(x[i])
		z += 1
		i += 1
if z % 2 == 0:
	print('CHAT WITH HER!')
elif z % 2 == 1:
	print('IGNORE HIM!')


def main():
	uname = input()
	list = []
	for c in uname:
		if not c in list:
			list.append(c)
	if len(list) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


import sys
sys.setrecursionlimit(10000)
string = list(input())
j = 0

def uniqueness(string, i):

	def finder(string, j):
		if string[j] == string[i] and i != j:
			del string[j]
			uniqueness(string, i)
		if j < len(string) - 1 and i != len(string) - 1:
			finder(string, j + 1)
			return False
		if j == len(string) - 1:
			uniqueness(string, i + 1)
			return False
	if i < len(string) - 1:
		finder(string, j)
uniqueness(string, 0)
if len(string) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
p = set(n)
q = list(p)
l = len(q)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = input()
lenst = len(set(st))
if lenst % 2 == 0:
	print('CHAT WITH HER!')
elif lenst % 2 != 0:
	print('IGNORE HIM!')


(a, i) = (list(input()), 0)
for x in range(len(a) - i):
	if a.count(a[i]) > 1:
		a.remove(a[i])
	else:
		i += 1
print('CHAT WITH HER!' if len(a) % 2 == 0 else 'IGNORE HIM!')


n = input()
n = n.lower()
li2 = []
li = []
li = [char for char in n]
for i in li:
	if i not in li2:
		li2.append(i)
if len(li2) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
hsl = 1
x = 0
k = 0
for i in range(len(n)):
	for j in range(i):
		if n[i] != n[j]:
			x += 1
		k = j
	if x == k + 1:
		hsl += 1
	k = 0
	x = 0
if hsl % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
s = [i for i in input()]
l = set(s)
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
b = set()
b.update(s)
if len(b) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def recognize(name):
	original = []
	i = 0
	for j in range(len(name)):
		original.append(name[j])
	while True:
		if i >= len(original):
			break
		cont = 0
		for e in range(len(original)):
			if e != i and original[e] == original[i]:
				original.pop(e)
				cont += 1
				break
		if cont == 0:
			i += 1
	if len(original) % 2 != 0:
		return 'IGNORE HIM!'
	return 'CHAT WITH HER!'
nick = input()
print(recognize(nick))


a = input()
p = set()
for i in range(len(a)):
	p.add(a[i])
if len(p) % 2 == 0 or len(a) - len(p) == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = list(s)
k = set(l)
l = list(k)
s = ''
s = s.join(l)
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
characters = {}
for i in x:
	characters[i] = 1
ans = len(characters)
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


b = set(input())
l = len(b)
if l % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


words = input()
ku = []
for i in words:
	if i not in ku:
		ku.append(i)
if len(ku) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = str(input())
alist = []
l = len(name)
for i in range(l):
	if name[i] in alist:
		alist = alist
	if not name[i] in alist:
		alist.append(name[i])
num = len(alist)
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input('')
w = []
count = len(x)
girl = 'CHAT WITH HER!'
boy = 'IGNORE HIM!'
for i in x:
	if i not in w:
		w.append(i)
distinct = len(w)
if distinct % 2 == 0:
	print(girl)
else:
	print(boy)


chars = list(input())
distinctChars = []
for c in chars:
	if c not in distinctChars:
		distinctChars.append(c)
if len(distinctChars) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nombre = str(input())
no_repetidas = ''
n = 0
for i in nombre:
	if i not in no_repetidas:
		no_repetidas += i
		n += 1
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
v = []
k = 0
for i in range(len(s)):
	if s[i] not in v:
		k = k + 1
		v.append(s[i])
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
userNameList = list(set(user_name))
if len(userNameList) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


char = []
dis_char = []
name = input()
while len(name) > 100:
	name = input()
for i in name:
	char.append(i)
for i in char:
	if i in dis_char:
		continue
	else:
		dis_char.append(i)
size = len(dis_char)
if size % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


CHAT_WITH_HER = 'CHAT WITH HER!'
IGNORE_HIM = 'IGNORE HIM!'

def solve_the_problem():
	user_name = input()
	distinc_letters = set(user_name)
	if len(distinc_letters) % 2 == 0:
		print(CHAT_WITH_HER)
	else:
		print(IGNORE_HIM)
solve_the_problem()


print(['IGNORE HIM!', 'CHAT WITH HER!'][len(set(map(str, input()))) % 2 == 0])


s = input()
ct = [0] * 26
x = 0
for ch in s:
	x = ord(ch) - ord('a')
	ct[x] = ct[x] + 1
x = 0
for i in ct:
	if i > 0:
		x = x + 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
d = dict()
count = 0
for i in name:
	if i not in d:
		d[i] = 1
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
for line in sys.stdin:
	set = {''}
	for x in line:
		set.add(x)
	if len(set) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


username = input()
found = []
counter = 0
for i in username:
	if i not in found:
		counter += 1
		found.append(i)
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import os
import random
import re
import sys
m = input()
for i in m:
	if m.count(i) > 1:
		m = m.replace(i, '')
		m = m + i
if len(m) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = list(input())
b = list('abcdefghijklmnopqrstuvwxyz')
ans = 0
for bet in b:
	if bet in a:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


words = input()
unique_words = ''
for word in words:
	if word not in unique_words:
		unique_words += word
print('CHAT WITH HER!' if len(unique_words) % 2 == 0 else 'IGNORE HIM!')


def main():
	from sys import stdout
	tex = input()
	lis = []
	for chr in tex:
		if chr not in lis:
			lis.append(chr)
	if len(lis) % 2 == 0:
		res = 'CHAT WITH HER!'
	else:
		res = 'IGNORE HIM!'
	stdout.write(str(res))
main()


a = set()
for x in input().strip():
	a.add(x)
if len(a) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


k = input()
l = set(k)
u = len(l)
if u % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


A = input()
MRRET_ALIHA = ''
counter = 0
for letter in A:
	if letter not in MRRET_ALIHA:
		counter += 1
	MRRET_ALIHA += letter
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


sentence = list(input())
table = [0] * 27
distinct = 0
for i in range(len(sentence)):
	numeroCaractere = ord(sentence[i]) - 97
	table[numeroCaractere] += 1
for i in range(len(table)):
	if table[i] != 0:
		distinct += 1
if distinct % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name_user = str(input())
list_name_user = []
for item in name_user:
	list_name_user.append(item)
n = len(list_name_user)
for i in range(n):
	j = i + 1
	while j < n:
		if list_name_user[i] == list_name_user[j]:
			del list_name_user[j]
			n -= 1
		else:
			j += 1
if n % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
arr = {'0'}
for i in range(0, len(s)):
	arr.add(s[i])
count = len(arr) - 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = set()
for e in s:
	ss.add(e)
l = len(ss)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = dict()
for i in s:
	if i not in d:
		d.update({i: 0})
if len(d.items()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input().split()
a = set()
c = 0
for i in n:
	a.update(i)
for i in a:
	c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import re
txt = input('')
check = ''
for i in range(0, len(txt)):
	if re.search(txt[i], check):
		pass
	else:
		check = check + txt[i]
if len(check) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def countDistinct(s):
	m = {}
	m = m.fromkeys(s, 0)
	for i in range(len(s)):
		m[s[i]] += 1
	return len(m.keys())
str = input()
n = countDistinct(str)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def prob236a(x):
	x = list(x)
	letter_count = []
	for letter in x:
		if letter not in letter_count:
			letter_count.append(letter)
	if len(letter_count) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
x = input().strip()
print(prob236a(x))


n = input()
i = 0
c = 0
y = str(n[0])
l = 'new'
while i < len(n):
	while c < len(y) and l == 'new':
		if n[i] == y[c]:
			l = 'found'
		c += 1
	if l == 'new':
		y += n[i]
	i += 1
	c = 0
	l = 'new'
if len(y) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
theDict = {}
for i in name:
	if i in theDict:
		theDict[i] += 1
	else:
		theDict[i] = 1
counter = 0
for i in theDict:
	counter += 1
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = str(input())
nickSet = set()
for x in nick:
	nickSet.add(x)
if len(nickSet) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def seperateints(x):
	k = ''
	l = []
	for i in x:
		if i == ' ':
			l.append(int(k))
			k = ''
			continue
		k = k + i
	l.append(int(k))
	return l
s = input()
kk = ''
for i in s:
	if not i in kk:
		kk = kk + i
if len(kk) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


t = input()
d = {}
for j in t:
	if j in d:
		d[j] = d[j] + 1
	else:
		d[j] = 1
c = 0
for (i, j) in d.items():
	c = c + 1
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = input()
num = len(string)
for (idx, vals) in enumerate(string):
	if string[idx] in string[idx + 1:]:
		num -= 1
if num % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


val = list(input())
new = set(val)
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
ss = 'abcdefghijklmnopqrstuvwxyz'
ans = 0
for i in ss:
	if s.count(str(i)) > 0:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
d = {}
c = 0
f = 0
for i in n:
	try:
		if d[i]:
			f += 1
	except:
		c += 1
		d[i] = 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout

def main():
	inp1 = list(input())
	s = set(inp1)
	if len(s) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


l = list(input())
l.sort()
c = 0
for x in range(len(l) - 1):
	if l[x] != l[x + 1]:
		c = c + 1
if c % 2 != 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
sums = 1
for i in range(len(s) - 1):
	truth = True
	for j in range(i + 1, len(s)):
		if s[i:i + 1] == s[j:j + 1]:
			truth = False
	if truth == True:
		sums += 1
if sums % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


X = input()
Y = []
Z = 0
for I in X:
	if I not in Y:
		Y.append(I)
		Z += 1
if Z % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import OrderedDict
word = input()
a = len(list(OrderedDict.fromkeys(word)))
b = a % 2
if b == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
l = len(s)
c = 1
new = list()
new.append(s[0])
for i in range(1, l):
	if s[i] in new:
		continue
	else:
		new.append(s[i])
		c += 1
if c % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
n = list(name)
n.sort()
x = len(n)
number = 0
for i in range(x):
	if n[i] != n[i - 1]:
		number = number + 1
if number % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


strr = input()
strl = [char for char in strr]
strl = set(strl)
if len(strl) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
tup = ''
for x in s:
	if tup.find(x) == -1:
		tup = tup + x
if len(tup) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


b = str(input())
c = ''
for i in b:
	if i not in c:
		c = c + i
if len(c) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string1 = str(input())
string2 = ''
for i in range(0, len(string1)):
	if string1[i] not in string2:
		string2 = string2 + string1[i]
if len(string2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


p = []
for i in range(256):
	p.append(False)
s = list(input())
n = len(s)
for i in range(n):
	p[ord(s[i])] = True
ans = 0
for i in range(256):
	if p[i]:
		ans += 1
if ans % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
cnt = 0
l = len(s)
for i in range(l):
	if s[i] in s[i + 1:]:
		pass
	else:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
char = [0] * 26
for i in range(len(s)):
	char[ord(s[i]) - ord('a')] += 1
cnt = 0
for i in range(len(char)):
	if char[i] > 0:
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


inp = input()
dic = {}
for i in inp:
	dic.setdefault(i, 1)
	dic[i] += 1
if len(dic.keys()) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


string = input()
t = list(set(string))
if len(t) % 2 == 0:
	print('CHAT WITH HER!', end='')
else:
	print('IGNORE HIM!', end='')


s = input()
l1 = list(s)
s1 = []
for i in l1:
	if i not in s1:
		s1.append(i)
	else:
		pass
if len(s1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d = {}
for i in range(0, len(s)):
	d[s[i]] = d.get(s[i], 0) + 1
l = list(d.values())
p = len(l)
if p % 2 != 1:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
num = 0
for i in n:
	k = 0
	for j in n:
		if i != j:
			k += 1
	if k == len(n) - 1:
		num += 1
	n = n[1:]
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


arr = list(map(str, input().split()))
lst = []
for i in range(len(arr)):
	lst += arr[i]
lst.sort()
count = len(lst)
for i in range(len(lst) - 1):
	if lst[i] == lst[i + 1]:
		count -= 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nome = input()
distintos = ''
cont = 0
for i in nome:
	if not i in distintos:
		distintos += i
		cont += 1
if cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
unic = []
for word in range(len(text)):
	if text[word] not in unic:
		unic.append(text[word])
if len(unic) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
letterList = []
add = True
for i in range(0, len(name)):
	add = True
	x = name[i]
	for f in range(0, len(letterList)):
		if x == letterList[f]:
			add = False
	if add == True:
		letterList.append(x)
if len(letterList) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str1 = input('')
length = len(str1)
for i in range(0, len(str1)):
	for count in range(i + 1, len(str1)):
		if str1[i] == str1[count]:
			length -= 1
			break
if length % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import sys
name = sys.stdin.read().split('\n')[0]
if len(set(name)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
num = 0
for i in range(len(s)):
	if s[i] == '&':
		continue
	n = s.count(s[i])
	if n == 1:
		num += 1
	else:
		num += 1
		s = s.replace(s[i], '&')
if num % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def swap(x, y, a):
	temp = a[x]
	a[x] = a[y]
	a[y] = temp
	return a

def solve():
	return None

def main():
	q = []
	for line in sys.stdin.readlines():
		q.append(line)
	ret = set(q[0])
	if len(ret) % 2 != 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


e = input()
h = list(set(e))
if len(h) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
s_set = set()
for i in s:
	s_set.add(i)
if len(s_set) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str1 = input()
cnt = 0
tracked = []
for letter in str1:
	if letter not in tracked:
		tracked.append(letter)
		cnt += 1
if cnt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = sorted(input())
s = 1
for (x, j) in zip(a, a[1:]):
	if x != j:
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


N = input('')
ABC = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
Cont = 0
Res = []

def SIesta(Elemen, A):
	Cont = 0
	for K in range(len(A)):
		if A[K] == Elemen:
			Cont = 1
	return Cont
for K in range(len(N)):
	Letra = str(N[K])
	for J in range(len(ABC)):
		abc = str(ABC[J])
		if abc == Letra:
			X = SIesta(Letra, Res)
			if X == 0:
				Res = Res + [Letra]
				Cont = Cont + 1
if Cont % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
g = []
nt = 0
for i in n:
	if i not in g:
		g.append(i)
		nt = nt + 1
if nt % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
count = 0
l = sorted(n)
s = ''.join(l)
for i in range(1, len(s)):
	if s[i - 1] != s[i]:
		count = count + 1
if count % 2 != 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
m = set(n)
v = 0
if len(n) <= 100:
	for i in m:
		v += 1
	if v % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


str = input()
a = set(str)
if a.__len__() % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


st = str(input())
d = 1
res = sorted(st)
for i in range(len(st) - 1):
	if res[i] != res[i + 1]:
		d += 1
if d % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
a = list()
for word in n:
	if word not in a:
		a.append(word)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
if len(a) % 2 == 1:
	print('IGNORE HIM!')


def solve(st):
	st = set(st)
	if len(st) % 2 != 0:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
st = input()
print(solve(st))


s = input()
l = []
for char in s:
	l.append(char)
ans = len(set(l))
if ans & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


n = input()
s = 0
for i in range(ord('a'), ord('z') + 1):
	if chr(i) in n:
		s += 1
if s % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = sorted(input())
d = sum((f == s for (f, s) in zip(s, s[1:])))
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(s) - d & 1])


string = set(input().strip())
length = int(len(string))
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = input()
letters = []
for letter in user_name:
	if letter not in letters:
		letters.append(letter)
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
s = list()
for character in n:
	if character not in s:
		s.append(character)
if len(s) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def solve(s):
	s_check = set(list(s))
	if len(s_check) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
s_in = input()
solve(s_in)


word1 = input()
word1 = ''.join(set(word1))
count1 = len(word1)
if count1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
k = 0
ans = 0
for i in s:
	f = 1
	for j in range(k + 1, len(s)):
		if i == s[j]:
			f = 0
	if f:
		ans += 1
	k += 1
if ans % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = str(input())
print(('CHAT WITH HER!', 'IGNORE HIM!')[len({*s}) % 2])


def cuenta_distintos(s):
	s = sorted(s)
	count = 1
	for i in range(1, len(s)):
		if s[i] != s[i - 1]:
			count += 1
	return count

def run():
	cosa0 = str(input())
	cosa1 = cuenta_distintos(cosa0)
	if cosa1 % 2 == 0:
		print('CHAT WITH HER!')
		return 'CHAT WITH HER!'
	else:
		print('IGNORE HIM!')
		return 'IGNORE HIM!'
run()


t = set((i for i in input()))
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(t) % 2])


from collections import defaultdict
a = 'IGNORE HIM!'
b = 'CHAT WITH HER!'
s = input()
d = defaultdict(int)
for c in s:
	d[c] += 1
if len(d) % 2 == 0:
	print(b)
else:
	print(a)


word = input()
x = 1
for i in range(1, len(word)):
	a = word[i]
	if a in word[:i]:
		None
	else:
		x = x + 1
if x % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
x = ''.join(sorted(set(x), key=x.index))
if len(x) % 2 != 0:
	print('IGNORE HIM!')
elif len(x) % 2 == 0:
	print('CHAT WITH HER!')


inp = list(input())
res = []
for i in inp:
	if i not in res:
		res.append(i)
if len(res) % 2 == 0:
	print('CHAT WITH HER!')
if len(res) % 2 == 1:
	print('IGNORE HIM!')


num = input('')
di = dict()
for w in num:
	if w not in di:
		di[w] = 1
if len(di) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input())
a = len(x)
b = []
for i in range(a):
	if x[i] in b:
		b = b
	else:
		b.append(x[i])
c = len(b)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


bog = input().lower()
temp = ''
for i in bog:
	if not i in temp:
		temp += i
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(temp) % 2 != 0])


s = input()
t = 0
for i in range(0, 26):
	if s.count(chr(97 + i)) >= 1:
		t += 1
if t % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
lst = []
q = True
for i in a:
	lst.append(i)
if len(set(lst)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


kata = str(input())
bol = 1
arr = []
arr.append(kata[0])
for i in range(1, len(kata)):
	for j in range(len(arr)):
		if kata[i] == arr[j]:
			bol = 0
			break
		else:
			bol = 1
	if bol == 1:
		arr.append(kata[i])
if len(arr) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user = input()
letters = list(set(user))
if len(letters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


ime = input()
ime_bez_duplikata = ''.join(list(dict.fromkeys(ime)))
if len(list(ime_bez_duplikata)) % 2 == 0:
	print('CHAT WITH HER!')
elif len(list(ime_bez_duplikata)) % 2 == 1:
	print('IGNORE HIM!')


from collections import Counter
n = input()
m = Counter(n)
l = []
for i in m.elements():
	l.append(i)
s = set(l)
if len(s) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


str = input()
count = 0
for i in range(len(str)):
	chk = 0
	for j in range(i - 1, -1, -1):
		if str[i] == str[j] and i != 0:
			chk = 1
			break
	if chk == 0:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


st = str(input())
x = list(st)
a = ''
for i in range(0, len(st)):
	if x[i] not in a:
		a = a + x[i]
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
l = list(s)
d = []
c = 0
for i in l:
	if i not in d:
		d.append(i)
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def checkname(name):
	liste = []
	for i in name:
		if i not in liste:
			liste.append(i)
	if len(liste) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
a = input()
checkname(a)


import math
name = input()
new = set(name)
if len(new) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
A = []
for i in n:
	if i not in A:
		A.append(i)
	else:
		continue
l = len(A)
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
dist = ''.join(set(a))
length = len(dist)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from collections import Counter
s = input()
d = Counter(s)
l = list(d.keys())
if len(l) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


li = list(input())
L = len(li)
lis = []
for i in li:
	if i not in lis:
		lis.append(i)
le = len(lis)
if le % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


stroka = input()
unicum = []
for i in range(len(stroka)):
	if stroka[i] not in unicum:
		unicum.append(stroka[i])
if len(unicum) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
lst = list(set(n))
a = len(lst)
if a % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


name = input()
result = []
i = 0
while i < len(name):
	result.append(name[i])
	i = i + 1
p = 0
j = 0
while j < len(result):
	if result.index(result[j]) == j:
		p = p + 1
	j = j + 1
if p % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


string = sorted(input())
count = 0
i = 0
while i < len(string):
	if string.count(string[i]) > 1:
		count += 1
		string = [e for e in string if e != string[i]]
	else:
		i += 1
if (len(string) + count) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
o = ''
for i in range(len(s)):
	if s[i] not in o:
		o = o + s[i]
l = len(o)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
i = 0
k = 0
while name != '':
	name = name.replace(name[i], '')
	k += 1
if k % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def clear_distinct(line):
	for i in range(0, len(line)):
		for j in range(i + 1, len(line)):
			if line[i] == line[j]:
				line[j] = ''
	return line
line = input()
distinct_line = clear_distinct(list(line))
distinct_line = ''.join(distinct_line)
if len(distinct_line) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import collections
s = input()
l = len(set(s))
if l % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


arr = []
for i in range(0, 27):
	arr.append(-1)
s = input()
ss = ''
for i in range(0, len(s)):
	if arr[ord(s[i]) - 97] == -1:
		ss = ss + s[i]
		arr[ord(s[i]) - 97] = 0
if len(ss) % 2:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


username = input()

def separate(usr):
	n_list = []
	for x in range(len(usr)):
		n_list.append(usr[x])
	return n_list

def sort(list):
	flag = []
	for x in list:
		if x not in flag:
			flag.append(x)
	return flag

def f_list():
	l = []
	l = sort(separate(username))
	if len(l) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
f_list()


name = input()
chars = {}
for ch in name:
	if not chars.get(ch):
		chars[ch] = True
k = 0
for keys in chars:
	k += 1
print('CHAT WITH HER!' if k % 2 == 0 else 'IGNORE HIM!')


y = input()
leng = len(y)
x = sorted(y)
count = 0
for i in range(0, leng):
	if x[i] != x[i - 1]:
		count = count + 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


K = set(input())
K = list(K)
c = len(K)
if c & 1 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
inputs = sys.stdin.readline().strip()
distinctN = ''
for i in range(len(inputs)):
	char = inputs[i]
	if char not in distinctN:
		distinctN = distinctN + char
if len(distinctN) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(s):
	cs = set(s)
	if len(cs) % 2 == 1:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'

def main():
	s = input()
	print(solve(s))
main()


x = input()
set1 = set(x)
c = len(set1)
if c % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from itertools import repeat
n = list(repeat(0, 123))
for c in input():
	n[ord(c)] = 1
print(['CHAT WITH HER!', 'IGNORE HIM!'][sum(n) % 2])


name = list(input())
alphabet = list()
for i in name:
	if i not in alphabet:
		alphabet.append(i)
if len(alphabet) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from enum import Enum

class Answer(Enum):
	MALE = 'IGNORE HIM!'
	FEMALE = 'CHAT WITH HER!'

def solve(s: str) -> Answer:
	if len(set(s)) % 2 == 0:
		return Answer.FEMALE.value
	return Answer.MALE.value
s: str = input()
print(solve(s))


str = input()
counts = dict()
for letter in str:
	counts[letter] = counts.get(letter, 0) + 1
res = len(counts)
if res % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


userName = str(input())
seen = []
for i in range(len(userName)):
	if userName[i] in seen:
		continue
	seen.append(userName[i])
if len(seen) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = 'abcdefghijklmnopqrstuvwxyz'
n = input()
l = []
for i in s:
	l.append(n.count(i))
if (26 - l.count(0)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


B = []
c = 0
for i in range(26):
	B.append(0)
name = input()
for i in name:
	B[ord(i) - 97] += 1
for i in range(26):
	if B[i] > 0:
		c += 1
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
arr = []
arr1 = []
for i in range(len(n)):
	arr += [n[i]]
arr.sort()
for i in range(len(arr) - 1):
	if arr[i] == arr[i + 1]:
		arr[i] = '#'
for i in range(len(arr)):
	if arr[i] != '#':
		arr1 += [arr[i]]
	else:
		continue
g = len(arr1)
if g % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


anslist = ['CHAT WITH HER!', 'IGNORE HIM!']
checklist = []
for i in range(0, 26):
	checklist.append(False)
S = input()
for i in range(0, len(S)):
	checklist[ord(S[i]) - 97] = True
cnt = 0
for i in range(0, 26):
	if checklist[i]:
		cnt += 1
print(anslist[cnt % 2])


from collections import Counter

def is_distinct(name):
	return len(Counter(name).keys())
name = input()
if is_distinct(name) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
name.lower()
lst = []
for i in name:
	if i not in lst:
		lst.append(i)
if len(lst) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


from sys import stdin, stdout
username = stdin.readline().strip()
if len(set(username)) & 1:
	stdout.write('IGNORE HIM!\n')
else:
	stdout.write('CHAT WITH HER!\n')


s = input()
sl = [char for char in s]
d = []
for i in s:
	if not d.__contains__(i):
		d.append(i)
print('CHAT WITH HER!' if len(d) % 2 == 0 else 'IGNORE HIM!')


try:
	print(['CHAT WITH HER!', 'IGNORE HIM!'][len({*input()}) % 2])
except:
	pass


import sys
t = 1
for __ in range(t):
	l = [0] * 27
	s = input()
	cnt = 0
	for i in range(len(s)):
		l[ord(s[i]) - ord('a')] += 1
	for i in range(27):
		if l[i] > 0:
			cnt += 1
	if cnt % 2 != 0:
		print('IGNORE HIM!')
	else:
		print('CHAT WITH HER!')


import sys
n = sys.stdin.readline().rstrip()
n = set(n)
if len(n) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


word = input()
count = 0
resultcount = 0
char_bucket = []
for i in range(0, len(word)):
	for j in range(i + 1, len(word)):
		if word[i] == word[j] and word[i] not in char_bucket:
			count = count + 1
	char_bucket.append(word[i])
count = len(word) - count
if count % 2 == 0 or count == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
username = str(input()).lower()
distinctchar = 0
for letter in string.ascii_lowercase:
	if username.count(letter) >= 1:
		distinctchar += 1
if distinctchar % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def malefemale(name):
	distinct = len(name)
	if distinct % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
malefemale(set(input()))


a = 'CHAT WITH HER!'
b = 'IGNORE HIM!'
stri = input()
tot = set()
for letter in stri:
	tot.add(letter)
i = 0
for se in tot:
	i += 1
if i % 2 == 1:
	print(b)
else:
	print(a)


name = input('')
name = [l for l in name]
letter_unique = set(name)
if len(letter_unique) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = list(input())
dii = {}
count = 0
for i in range(len(n)):
	if n[i] in dii:
		pass
	else:
		dii[n[i]] = 1
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


user_name = str(input())
global count, flag1, t, flag2
t = len(user_name)
flag2 = False
flag1 = False
count = 0
if len(user_name) >= 100 or user_name.isupper() or any(map(str.isdigit, user_name)):
	exit()
else:
	for i in range(len(user_name)):
		flag1 = False
		flag2 = False
		for j in range(i):
			if user_name[j] == user_name[i]:
				flag1 = True
				break
		if flag1 == True:
			continue
		else:
			for k in range(i + 1, len(user_name)):
				if user_name[k] == user_name[i]:
					t = t - 1
					flag2 = True
	if t % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')


stringa = input()
assert len(stringa) < 100
counter = 0
lista = []
for i in range(len(stringa)):
	if stringa[i] not in lista:
		lista.append(stringa[i])
if len(lista) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


m = input()
n = []
for i in m:
	n.append(i)
n.sort()
N = []
for i in n:
	if i not in N:
		N.append(i)
if len(N) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input().lower()
ans = 0
b = 0
for i in a:
	pos = ord(i) - ord('a')
	if not 1 << pos & b:
		b = 1 << pos | b
		ans += 1
if ans & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


userName = input()
array = [0] * 26
for char in userName:
	index = ord(char) - ord('a')
	array[index] = 1
uniqueChars = 0
for cell in array:
	uniqueChars += cell
if uniqueChars % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def deleter(mas, i):
	res = ''
	for (j, el) in enumerate(mas):
		if j != i:
			res += el
	return spliter(res)

def spliter(s):
	mas = []
	for i in range(len(s)):
		mas.append(s[i])
	return mas
s = spliter(input())
mas = []
p = 0
flag = 1
flag2 = 1
flag3 = 0
while flag:
	try:
		i = s[p]
		s = deleter(s, p)
	except:
		flag = False
	if p == 0 and flag2:
		mas.append(i)
		flag2 = 0
	else:
		for (j, el) in enumerate(mas):
			if i == el:
				p = 0
				flag3 = 0
				break
			else:
				flag3 = 1
		if flag3 == 1:
			mas.append(i)
if len(mas) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = []
for x in name:
	if not x in s:
		s.append(x)
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(s) % 2])


string = input()
list0 = []
counter = 0
for i in string:
	if i not in list0:
		counter = counter + 1
		list0.append(i)
if counter % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def method(name):
	list = []
	num = 0
	for x in range(0, len(name)):
		char = name[x]
		if char not in list:
			list.append(char)
			num += 1
	if num % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
method(input())


import sys
s = input()
l = []
for i in s:
	l.append(i)
cnt = 0
l.sort()
sz = len(l)
for i in range(1, sz):
	if l[i] != l[i - 1]:
		cnt += 1
if cnt % 2 == 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
d = {}
for i in range(0, len(s)):
	d[s[i]] = d.get(s[i], 0) + 1
count = 0
for i in d:
	if d[i] >= 1:
		count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys

def rl():
	return sys.stdin.readline().strip()

def rn():
	return list(map(int, sys.stdin.readline().strip().split()))

def ri():
	return map(int, sys.stdin.readline().strip().split())

def rln(n):
	l = [None] * n
	for i in range(n):
		l[i] = int(rl())
	return l
a = set(list(input()))
print('CHAT WITH HER!' if len(a) % 2 == 0 else 'IGNORE HIM!')


def canChat(name):
	d = {}
	for c in name:
		d[c] = None
	if len(d) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
a = input('')
canChat(a)


import sys
name = sys.stdin.readline().rstrip().split()[0]
diff_chars = len(set(name))
if diff_chars % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


avatar_name = input()
distinct_list = set(avatar_name)
if len(distinct_list) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
dictionary = {}
for a in n:
	if a not in dictionary:
		dictionary[a] = 1
if len(dictionary) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_or_girl(username):
	if len(set(username)) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
username = input()
boy_or_girl(username)


def isBoyOrGirl():
	name = [x for x in input()]
	seen = []
	for letter in name:
		if letter not in seen:
			seen.append(letter)
	if len(seen) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(isBoyOrGirl())


from collections import OrderedDict

def newFunction():
	string1 = input()
	string1 = ''.join(list(OrderedDict.fromkeys(string1)))
	if len(string1) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
newFunction()


s = input()
l = list(s)
result = set(l)
length = len(result)
if length % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input('')
count = 0
enthaelt = []
for i in range(len(username)):
	if not username[i] in enthaelt:
		count += 1
		enthaelt.extend(username[i])
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = set(input())
print(['CHAT WITH HER!', 'IGNORE HIM!'][len(name) % 2 == 1])


s = input()
lis = []
for i in range(len(s)):
	lis.append(s[i])
st = set(lis)
if len(st) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input('')
x = len(set(name))
if x % 2 == 0 and x >= 2:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin, stdout
import math

def main():
	line = stdin.readline()
	h = ''
	for i in range(0, len(line)):
		act = line[i]
		if act not in h:
			h = h + act
	if len(h) % 2 == 0:
		stdout.write('IGNORE HIM!')
	else:
		stdout.write('CHAT WITH HER!')
main()


string = input()
names = []
length = len(string)
for each in range(0, length):
	names.append(string[each])
name = set(names)
count = len(name)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = str(input())
l = list(s)
d = dict()
c = 0
for i in l:
	d[i] = 1
c = len(d)
if c % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def readis():
	return map(int, input().strip().split())

def printlist(xs):
	print(' '.join(map(str, xs)))
s = input()
if len(set(s)) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()
k = ''
for x in a:
	if x not in k:
		k = k + str(x)
if len(k) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
s = str(name[0])
f = False
for i in name:
	for j in s:
		if i == j:
			f = True
			break
	if f == False:
		s += i
	f = False
if len(s) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
distinct = []
for i in username:
	if distinct.count(i) == 0:
		distinct.append(i)
if len(distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin

def is_a_man(line) -> bool:
	letters = []
	for l in line:
		if l not in letters:
			letters.append(l)
	return len(letters) % 2 != 0

def main():
	line = stdin.readline().strip()
	SALIDA = []
	while len(line) != 0:
		SALIDA.append('IGNORE HIM!' if is_a_man(line) else 'CHAT WITH HER!')
		line = stdin.readline().strip()
	print('\n'.join(SALIDA))
main()


n = input()
li = []
s = len(n)
for i in range(s):
	li.append(n[i])
se = set(li)
total = len(se)
if total % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = str(input())
a1 = list(a)
a2 = set(a1)
a2 = list(a2)
if len(a2) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


a = input()

def check(a):
	dist = ''
	for i in a:
		if not i in dist:
			dist += i
	if len(dist) % 2 == 1:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
print(check(a))


str1 = input()
uniqueChars = list(set(str1))
if len(uniqueChars) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nickname = input()
unicLetters = [nickname[0]]
for x in nickname:
	for k in unicLetters:
		if k == x:
			break
	else:
		unicLetters.append(x)
if len(unicLetters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


w = input()
u = []
for i in range(len(w)):
	if w[i] not in u:
		u.append(w[i])
l = len(u)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
arr = []
for i in s:
	if i in arr:
		pass
	else:
		arr.append(i)
if len(arr) & 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


w = input()
dick = dict()
for i in range(len(w)):
	dick[w[i]] = dick.get(w[i], 0) + 1
if len(dick) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import math
import sys

def boyorgirl():
	distinct = []
	datain = input()
	for i in datain:
		if i not in distinct:
			distinct.append(i)
	if len(distinct) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
boyorgirl()


s = input()
d = dict()
count = 0
for i in s:
	if i not in d:
		d[i] = 1
	else:
		d[i] += 1
for v in d.values():
	count += 1
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def str2list(stringa):
	lista = list()
	for i in range(len(stringa)):
		lista.append(stringa[i])
	return lista
a = set(str2list(input()))
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
d1 = {}
for c in s:
	if c not in d1:
		d1[c] = 1
if len(d1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def main() -> object:
	out_map = {'f': 'CHAT WITH HER!', 'm': 'IGNORE HIM!'}
	data = set(input())
	ans = None
	if len(data) & 1:
		ans = 'm'
	else:
		ans = 'f'
	print(out_map[ans])
	pass
main()


import string as st
n = str(input())
dis_n = [0] * 26
count = 0
for j in range(len(n)):
	pos = ord(n[j]) - 97
	dis_n[int(pos)] += 1
for i in range(len(dis_n)):
	if dis_n[i] != 0:
		count += 1
	else:
		continue
if count % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


input1 = input()
set1 = set(input1)
if len(set1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import string
sss = input()
a = {}
for s in sss:
	if s in a.keys():
		a[s] += 1
	else:
		a[s] = 1
print('CHAT WITH HER!' if len(a) % 2 == 0 else 'IGNORE HIM!')


nck = input()
nckLen = len(set(nck))
if nckLen % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def solve(n):
	c = 0
	temp = ''
	for i in range(0, len(n)):
		if n[i] not in temp:
			temp += n[i]
	if len(temp) % 2 == 0:
		return True
	else:
		return False
n = input()
if solve(n):
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = sorted(input())
unique = 1
for x in range(len(name) - 1):
	if name[x] != name[x + 1]:
		unique += 1
if unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boy_girl(s):
	s = sorted(s)
	c = 1
	for i in range(0, len(s) - 1):
		if s[i] != s[i + 1]:
			c += 1
	return c
x = input()
s = []
for i in range(0, len(x)):
	s.append(x[i])
n = boy_girl(s)
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
storage = []
counter = 0
for c in name:
	if c not in storage:
		storage.append(c)
	elif c in storage:
		counter += 1
if (len(name) - counter) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
a = list(s)
t = []
for i in a:
	if a.count(i) >= 1 and i not in t:
		t.append(i)
b = len(t)
if b % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = len(set(input()))
if int(str(x)[-1]) % 2 == 0:
	print('CHAT WITH HER!')
	exit(0)
print('IGNORE HIM!')


ch = str(input())
n = len(ch)
L = 'abcdefghijklmnopqrstuvwxyz'
T = [0 for _ in range(26)]
for k in range(n):
	T[L.index(ch[k])] = 1
if sum(T) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = str(input())
difChar = []
for letter in name:
	if letter.lower() in difChar:
		continue
	else:
		difChar.append(letter)
if len(difChar) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
_dict = {}
count = 0
for char in name:
	if char not in _dict:
		count += 1
		_dict[char] = True
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def sex_identifier(user):
	user = set(user)
	if len(user) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(sex_identifier(input()))


str = input()
unique_letters = []
for letters in str:
	if letters not in unique_letters:
		unique_letters.append(letters)
if len(unique_letters) % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


(data, list_) = (input(), [])
for char in data:
	if char not in list_:
		list_.append(char)
if len(list_) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = list(input())
x = set(username)
b = len(x)
if b % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


import re
a = input()
distinct = 0
for letter in a:
	if len(re.findall(letter, a)) > 1:
		a = a.replace(letter, '')
		distinct += 1
if (len(a) + distinct) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
a = []
for i in s:
	b = i in a
	if b == False:
		a.append(i)
l = len(a)
if l % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


l = input()
dic = 'abcdefghijklmnopqrstuvwxyz'
n = 0
for i in range(26):
	if dic[i] in l:
		n += 1
print('CHAT WITH HER!' if n % 2 == 0 else 'IGNORE HIM!')


username = input()
ref = {}
for letter in username:
	ref[letter] = ref.get(letter, 0) + 1
print('CHAT WITH HER!' if len(ref.keys()) % 2 == 0 else 'IGNORE HIM!')


name = input()
n = len(name)
temp = 0
for i in range(n):
	for j in range(i):
		if name[i] == name[j]:
			temp = 1
	if temp == 1:
		n = n - 1
		temp = 0
if n % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


masukan = input()
tampung = []
for i in range(len(masukan)):
	if masukan[i] not in tampung:
		tampung += masukan[i]
if len(tampung) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = str(input()).strip()
a = ''.join(dict.fromkeys(x))
if len(x) <= 100 and len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def boys_girls():
	strings = input()
	distinct = []
	x = 'CHAT WITH HER!'
	y = 'IGNORE HIM!'
	for char in strings:
		if char not in distinct:
			distinct.append(char)
	if len(distinct) % 2 == 0:
		return x
	else:
		return y
print(boys_girls())


n = input()
a = len(n)
k = set()
for i in range(a):
	k.add(n[i])
t = len(k)
if t % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


def main():
	in_string = input()
	char_set = set()
	unique_chars = 0
	for character in in_string:
		if not char_set.__contains__(character):
			unique_chars += 1
			char_set.add(character)
	print('CHAT WITH HER!' if unique_chars % 2 == 0 else 'IGNORE HIM!')
main()


import math
line = input()
chSet = {}
for ch in line:
	chSet[ch] = 1
keys = chSet.keys()
l = len(keys)
if l % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


a = input()
a = list(a)
a = list(dict.fromkeys(a))
a = ''.join(a)
if len(a) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys
count = 1
in_str = list(sys.stdin.readline())
str_arr = in_str[0:len(in_str) - 1]
str_arr.sort()
c = str_arr[0]
for i in range(1, len(str_arr)):
	if str_arr[i] != c:
		count += 1
	c = str_arr[i]
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


str = input()
count = 0
char = []
l = len(str)
for i in range(l):
	if str[i] in char:
		continue
	char.append(str[i])
llis = len(char)
if llis % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
letters = '0'

def found(c):
	for j in range(0, len(letters)):
		if letters[j] == c:
			return True
	return False
for i in range(0, len(nick)):
	if not found(nick[i]):
		letters += nick[i]
if (len(letters) - 1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


n = input()
list1 = []
for i in n:
	list1.append(i)
list1 = list(set(list1))
if len(list1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


from sys import stdin

def fun(line):
	chars = list(set(line))
	if len(chars) % 2:
		return 'IGNORE HIM!'
	else:
		return 'CHAT WITH HER!'
tests = [['wjmzbmr', 'CHAT WITH HER!'], ['xiaodao', 'IGNORE HIM!'], ['sevenkplus', 'CHAT WITH HER!']]
for line in stdin.readlines():
	print(fun(line.strip()))


St = input()
List = []
for i in range(len(St)):
	if St[i] not in List:
		List.append(St[i])
if len(List) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


username = input()

def main():
	letters = []
	for char in username:
		if len(letters) == 0:
			letters.append(char)
		else:
			for letter in letters:
				if letter == char:
					break
			else:
				letters.append(char)
	if len(letters) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
if __name__ == '__main__' and len(username) <= 100:
	main()


user_name = input()
char_list = []
for item in user_name:
	char_list.append(item)
my_set = set(char_list)
char_len = len(my_set)
if char_len % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


x = input()
z = [char for char in x]
new_set = set(z)
if len(new_set) % 2 == 0:
	print('CHAT WITH HER!')
if len(new_set) % 2 != 0:
	print('IGNORE HIM!')


n = input()
s1 = set()
for char in n:
	s1.add(char)
if len(s1) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def opakovanie(slovo):
	boli = set()
	result = []
	for i in slovo:
		if i not in boli or result.count(i) < 1:
			result.append(i)
			boli.add(i)
	if len(result) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
slovo = input()
vysledok = opakovanie(slovo)
print(vysledok)


s = input()
a = []
for i in range(26):
	a.append(0)
for x in s:
	a[ord(x) - ord('a')] += 1
p = 0
for i in range(26):
	if a[i] != 0:
		p += 1
if p % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


s = input()
v = set(s)
leng = len(v)
if leng % 2 != 0:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


s = input()
count = 0
used = []
for sumbol in s:
	if sumbol not in used:
		count = count + 1
		used.append(sumbol)
if count % 2 == 0:
	print('CHAT WITH HER!')
elif count % 2 != 0:
	print('IGNORE HIM!')


str1 = input()
l1 = []
for i in str1:
	if i not in l1:
		l1.append(i)
if len(l1) % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


line = input().rstrip()
line_unique = len(list(dict.fromkeys(line)))
if line_unique % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


text = input()
check = ''.join(set(text))
if len(check) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


nick = input()
letter_lst = []
for i in nick:
	letter_lst.append(i)
no_dupes = set(letter_lst)
char_count = 0
for j in no_dupes:
	char_count += 1
if char_count % 2 == 0:
	print('CHAT WITH HER!')
elif char_count % 2 != 0:
	print('IGNORE HIM!')


def boyOrGirl(s):
	x = set(s)
	if len(x) % 2 == 0:
		return 'CHAT WITH HER!'
	else:
		return 'IGNORE HIM!'
print(boyOrGirl(input()))


s = str(input())
l = int(len(s))
s1 = ''
for i in s:
	if i not in s1:
		s1 += i
l1 = int(len(s1))
if l1 % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


def determines(s):
	ss = set(s)
	if len(ss) % 2 == 0:
		return 'CHAT WITH HER!'
	return 'IGNORE HIM!'
s = input()
print(determines(s))


s = input()
k = 0
for x in range(len(s)):
	z = 0
	for y in range(x):
		if s[x] == s[y]:
			z = 1
			break
	if z == 0:
		k = k + 1
if k % 2 == 1:
	print('IGNORE HIM!')
else:
	print('CHAT WITH HER!')


nickname = input()
liters = []
for char in nickname:
	if char not in liters:
		liters.append(char)
if len(liters) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


name = input()
visited = []
count = 0
for i in name:
	if i in visited:
		continue
	else:
		count += 1
		visited.append(i)
if count % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')


import sys, os
from io import BytesIO, IOBase
import collections, itertools, bisect, heapq, math, string
BUFSIZE = 8192
BUFSIZE = 8192

class FastIO(IOBase):
	newlines = 0

	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = 'x' in file.mode or 'r' not in file.mode
		self.write = self.buffer.write if self.writable else None

	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines = 0
		return self.buffer.read()

	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b'\n') + (not b)
			ptr = self.buffer.tell()
			(self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr))
		self.newlines -= 1
		return self.buffer.readline()

	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			(self.buffer.truncate(0), self.buffer.seek(0))

class IOWrapper(IOBase):

	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s: self.buffer.write(s.encode('ascii'))
		self.read = lambda : self.buffer.read().decode('ascii')
		self.readline = lambda : self.buffer.readline().decode('ascii')
(sys.stdin, sys.stdout) = (IOWrapper(sys.stdin), IOWrapper(sys.stdout))
input = lambda : sys.stdin.readline().rstrip('\r\n')

def main():
	s = input()
	a = list(s)
	b = set(s)
	if len(b) % 2 == 0:
		print('CHAT WITH HER!')
	else:
		print('IGNORE HIM!')
main()


u_input = input()
boy_girl = {n for n in u_input}
if len(boy_girl) % 2 == 0:
	print('CHAT WITH HER!')
else:
	print('IGNORE HIM!')