Problem: 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!".

Solution (in PYTHON3):

Solution:
#q1
'''
for _ in range(int(input())):
    l=list(map(int,input().split()))

    x=l[1]
    y=l[2]
    z=l[2]

    print(x,y,z)
'''  
#q2
'''
for _ in range(int(input())):

    x,n,m=map(int,input().split())
    
    while(x>20 and n>0 and x > x//2+10):
        x=x//2+10
        n-=1

    if(x <= m*10):
        print("YES ")
    else:
        print("NO ")
'''

#q3 
'''
def swap(s,j,mi):
    l=list(s)
    temp=l[j]
    l[j]=l[mi]
    l[mi]=temp

    s=''.join(l)

    return s

for _ in range(int(input())):

    s,t=input().split()

    k=0
    for i in range(len(s)):
        if ord(s[i]) < ord(t[i]):
            k=1
            break

        elif ord(s[i]) == ord(t[i]):
            continue

        else:
            mi=i
            for j in range(i+1,len(s)):
                if ord(s[j]) < ord(t[mi]):
                    s=swap(s,j,mi)
                    k=1
                    break
            break
    if k==1:
        print(s)

    else:
        print('---')

'''

#q4
'''
import math

def lcm(n):
    p=n
    t=int(math.sqrt(n))+1
    l=[0]*n
    l[0]=1
    
    while n%2 == 0:
        if n//2==2:
            l[2-1]+=1
        else:
            l[2-1]+=1
            l[(n//2)-1]+=1
        n=n//2

    for i in range(3,t):
        while n%i==0:

            if n//i==i:
                l[i-1]+=1
            else:
                l[i-1]+=1
                l[(n//i)-1]+=1
                
            n=n//i

    print(l)
    d=set()
    for i in range(p):
#        print('1')
        if l[i]!=0:
            d.add(pow((i+1),l[i]))
#            print('2')

    print(d)
    return list(d)
            
n=int(input())

f=lcm(n)
print(f)

if len(f)==1 or len(f)==2:
    print('1',n)

else:
    t1=f[1]
    t2=f[2]
    k=min(t1,t2)
    for i in range(3,len(f)):
        if t1==k:
            t1*=k
        else:
            t2*=k
        k=min(t1,t2)

    print(t1,t2)
        
'''     
        
#q5
'''
for _ in range(int(input())):

    string=input()
    i=0
    de=0
    z=[]
    
    while i<len(string)-2:

        if string[i:i+5]=="twone":
            de+=1
            z.append(i+2)
            i+=5

        elif string[i:i+3]=="one":
            de+=1
            z.append(i+1)
            i+=3

        elif string[i:i+3]=="two":
            de+=1
            z.append(i+1)
            i+=3       
            
        else:
            i+=1

    print(de)
    for i in range(len(z)):
        print(z[i]+1,end=" ")

    print()
'''        

#string modification ****
'''
for _ in range(int(input())):
    n=int(input())

    string=input()

    l=list(string)
    
    for k in range(n):
        first=n-k

        for i in range(first):
            second=i+k

            l[i:second+1:1]=l[second:i-1:-1]
            print(l)

    print(l)

'''

#remove adjacent
'''
n=int(input())

string=input()
l=list(string)
#print(l)
de=0

while(1):
    q=l
    a=[]
    t=0
    
    for i in range(1,len(l)):
        a.append(ord(q[i])-ord(q[i-1]))
    
    if((1 in a) or (-1 in a)) :
        for i in range(len(a)):
            if a[i]==-1:
                l.pop(i-t)
                t+=1
                de+=1
#                print(l)

            elif a[i]==1:
                l.pop(i+1-t)
                t+=1
                de+=1
#                print(l)

        print(l)
        
    else:
        break
print(de)
'''            


#Yet Another Counting Problem
'''
def gcd(a,b):
    if b==0:
        return a
    else:
        return gcd(b,a%b)

    
def solve(r,lcm,b):

    no_of_term=r//lcm
    product=no_of_term*lcm

    tot=r

    if product!=0:

        tot-=min(b,(r-product+1))
        tot-=(no_of_term-1)*b
        
    return tot-min(r,b-1)

for _ in range(int(input())):

    a,b,q=map(int,input().split())
    if a>b:
        a,b=b,a
        
    gc=gcd(a,b)
    product=a*b
    lcm=product//gc
    
    for i in range(q):
        l,r=map(int,input().split())

        ans1=solve(r,lcm,b)
        if l>=b:
            ans2=solve(l-1,lcm,b)
            ans=ans1-ans2
        else:
            ans=ans1
            
        print(ans,end=" ")
    print()
'''

#number game
'''
import math

import math

f='FastestFinger'
a='Ashishgup'
def prime(n):
    
    r=int(math.sqrt(n))+1
    
    if n%2==0 and n!=2:
        return False

    for i in range(3,r):
        if n % i ==0:
            return False
        
    return True
  
def solve(n):

    if n==0 :
        return
    elif n==1:
        return f
    
    dp=[]
    dp.append(0)
    
    
for _ in range(int(input())):

    n=int(input())
    if prime(n) and n>1:
        print("Ashishgup")
    else:
        print(solve(n))

'''

#Ciel and Flowers
'''
l=list(map(int,input().split()))
t=list(l)

su1=0

for i in range(3):
    su1+=int(l[i]/3)
    l[i]=l[i]%3
    
if min(l)!=0: 
    su1+=min(l)

q=min(t)
su2=q

for i in range(3):
    t[i]-=q

for i in range(3):
    su2+=int(t[i]/3)
    
print(max(su2,su1))
'''


#Count Subrectangles
'''
def row(n,m,k,c):

    l=[]
    for i in range(n):
        su=0
        for j in range(k):
            su+=c[i][j]
        l.append(su)

    for i in range():    

n,m,k=map(int,input().split())

a=list(map(int,input().split()))
b=list(map(int,input().split()))

c=[[0 for i in range(m)]for j in range(n)]

for i in range(n):
    for  j in range(m):
        c[i][j]=a[i]*b[j]

row(n,m,k,c)

'''  

#Ciel and Flowers
'''
a,b,c=map(int,input().split())

ans1=a//3+b//3+c//3
ans2=ans3=0

if a>0 and b>0 and c>0:
    a-=1
    b-=1
    c-=1

    ans2=a//3+b//3+c//3

    ans2+=1

if a>0 and b>0 and c>0 :
    a-=1
    b-=1
    c-=1

    ans3=a//3+b//3+c//3

    ans3+=2

print(max(ans1,ans2,ans3))
'''   

#Way Too Long Words
'''
for _ in range(int(input())):

    s=input()
    ans=""
    
    if len(s)>10:
        t=str(len(s)-2)
        ans+=s[0]+t+s[len(s)-1]

    else:
        ans+=s

    print(ans)
'''

#Progress Bar
'''
n,k,t=map(int,input().split())

a1=n*k

a2=t*a1/100

a3=int(a2/k)

s=int(a2-a3*k)

if s>0:
    for i in range(n):
        if i<a3:
            print(k,end=" ")
        elif i==a3:
            print(s,end=" ")
        else:
            print('0',end=" ")

else:
    for i in range(n):
        if i<a3:
            print(k,end=" ")

        else:
            print('0',end=" ")
    
'''

# Required Remainder
'''
for _ in range(int(input())):

    x,y,n=map(int,input().split())
    t1=n//x
    t2=t1*x
#    print(t1,t2)
    
    if y==0:
        print(t2)
    else:
        a=x-y
        
        if y+t2<=n:
            print(y+t2)
        else:
            print(t2-a)
'''   
    
'''
t1=12345//7
print(t1)
t2=t1*7
print(t2)
'''

# Multiply by 2, divide by 6
'''
import math

def factoriation(n):
    k=int(math.sqrt(n))+1
    
    l=[0]*k

    t=0
    l[0]=0
    l[1]=0
    
    
    while n%2==0:
        t+=1
        n=n//2
        
    l[2]=t

    for i in range(3,k):
        t=0
        while n%i==0:
            t+=1
            n=n//i
        l[i]=t
        
        if n==1:
            return l
        else:
            return [0,0,0,0]
        
    return l

for _ in range(int(input())):

    n=int(input())

    if n==6:
        print('1')

    elif n==3:
        print('2')

    elif n==1:
        print('0')
    
    elif n>=9:
        l=factoriation(n)

        if l[3] >= l[2] and l[3]!=0:
            ans=-1
            ans=l[2]
            l[3]=l[3]-l[2]
            l[2]=0

            ans+=l[3]*2

            print(ans)
            
        else:
            print('-1')

    else:
        print('-1')

'''

# Move Brackets
'''
for _ in range(int(input())):

    n=int(input())

    string=input()

    ans=0
    x2=0
    
    for i in range(n):
        if string[i]==')':
            if x2==0:
                ans+=1
            else:
                x2-=1

        elif string[i]=="(":
            x2+=1

    print(ans)
'''      

#Petya and Strings
'''
string1=input().lower()
string2=input().lower()

for i in range(len(string1)):

    if string1[i] > string2[i]:
        print('1')
        break
    elif string1[i] < string2[i] :
        print('-1')
        break
     
    else:
        if i==len(string1)-1:
            print('0')
            break
        else:
            continue
'''

#Helpful maths
'''
string=input()
li=list(string.split("+"))
l=[0]*3

li.sort()

for i in range(len(li)):
    if i!=len(li)-1:
        print(li[i]+'+',end="")
    else:
        print(li[i])
'''

#word capitalisation
'''
string=input()

if ord(string[0])>96:
    print(chr(ord(string[0])-32)+string[1:])

else:
    print(string)
'''

#Boy or Girl

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!')