peterverebics/CodeNet_Python_118 huggingface dataset:
ans = []
type = [[1]]
que = []
N = int(input())
for i in range(N-1):
    que = type
    type = []
    while len(que) != 0:
        t = que.pop()
        ma = max(t)
        type.append(t + [ma])
        type.append(t + [ma+1])
type.sort()
char = " abcdefghijklmnopqrstuvwxyz"
for a in type:
    print("".join(map(lambda x: char[x], a)))
from collections import deque
n = int(input())
l = ["a","b","c","d","e","f","g","h","i","j","k"]
ansl = []
d = deque()
ans = "a"
d.append([ans,0])
while len(d):
    now,m = d.pop()
    if len(now) == n:
        ansl.append(now)
    else:
        d.append([now+l[m],m])
        d.append([now+l[m+1],m+1])
ansl.sort()
for i in ansl:
    print(i)
def saiki(n,A):

    if n == N:
        print(len(A))
        return

    alpha = list("abcdefghijklm")

    tmp = []

    for i in A:
        a = alpha.index(sorted(list(i))[-1])
        for j in range(a+2):
            tmp.append(i+alpha[j])
    
    saiki(n+1,tmp)

N = int(input())

saiki(1,["a"])
n = int(input())
al_list = ["a","b","c","d","e","f","g","h","i","j"]
def dfs(s,final,al_list):
  if len(s) == n:
    print(s)
  else:
    for hoge in range(al_list.index(final) + 2):
      tmp = s
      final = al_list[hoge]
      tmp += final
      dfs(tmp,final,al_list)
dfs("a","a",al_list)
n = int(input())
L = []
def f(sa, n, b):
    # sa='a', n=9, b='b'
#    print(sa, n, b)
    if n == 0:
        L.append(sa)
        return
    for i in range(n, 0, -1):
        x = sa + b*i
        c = chr(ord(b) + 1)
        f(x, n-i, c)
i = f('', n, 'a')
for l in L:
    print(l)
N=int(input())
ans="a"*N
re_ans=""
S=""
L=["b","c","d","e","f","g","h","i","j","k"]
for i in range(N):
    re_ans+=ans
    S+=L[i]
    ans="\n"+"a"*(N-i-1)+S

    
print(re_ans)
def search(s):
    if len(s) > max_length:
        print(s)
    else:
        temp = s+"a"
        search(temp)
        temp = s+"b"
        search(temp)

n = int(input())
max_length = n-1

search("a")
import math

al = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"]

N = int(input())
S = [[""] * math.factorial(i+1) for i in range(10)]

for i in range(10):
  if i == 0:
    S[0][0] = al[0]
  else:
    cnt = 0
    for s in S[i-1]:
      for a in al[:i+1]:
        S[i][cnt] = s + a
        cnt += 1

res_S = S[N-1]
for s in res_S:
  print(s)
N = int(input())
#print(N)
ret = 2 ** (N-1)
print(ret)
n = int(input())
dp = [[] for _ in range(12)]
dp[1].append("a")
alphabet = "abcdefghijklmno"

for i in range(1, n):
    for r in dp[i]:
        for t in alphabet[:i+1]:
            dp[i+1].append(r+t)


for ans in dp[n]:
    print(ans)
import sys

sys.setrecursionlimit(10 ** 8)

input = sys.stdin.readline


def main():
    N = int(input())

    ans = []

    def solve(s, n):
        if n <= 1:
            ans.append(s)
            return

        for i in range(ord(s[-1]) + 2 - ord('a')):
            solve(s + chr(ord('a') + i), n - 1)

    solve('a', N)
    for a in ans:
        print(a)



if __name__ == '__main__':
    main()
def dfs(cnt, s, now):
    if cnt == n:
        ans.append(s)
        return
    for i in range(now+1):
        dfs(cnt+1, s+al[i], i+1)

n = int(input())
ans = []
al = [chr(i) for i in range(97, 97+26)]
dfs(0, "", 0)
for i in ans:
    print(i)
n=int(input())
for i in range(2**(n-1)):
  S=format(i,'10b')
  A=[1]
  for i in range(n-1):
    if S[-n+i+1]=="1":
      A.append(A[-1]+1)
    else:
      A.append(A[-1])
  for i in range(n):
    print(chr(A[i]+96),end="")
  print()
n=int(input())

abc='abcdefghijklmnopqrstuvwxyz'

def dfs(keta,s):
  if keta==n:
    global ans
    ans.append(s)
    return

  inx=abc.index(s[-1])
  for i in range(inx+2):
    dfs(keta+1,s+abc[i])

ans=[]
dfs(1,'a')

for i in ans:
  print(i)
n = int(input())
li = ["a","b","c","d","e","f","g","h","i","j"]
for i in range(n):
  for j in range(n):
    print(li[i], end = "")
  print("")
t = int(input())

s = 'a'* t
if t==1:
  print(s)
else:
  for i in range(t):
    s = 'a'* (t-i) + 'b' * i
    print(s)
# -*- coding: utf-8 -*-
a = int(input())

l = 1
cur_ret = [[0]]
while l < a:
    new_ret = []
    na = new_ret.append
    for i in cur_ret:
        for j in range(i[-1]+2):
            na(i+[j])
    cur_ret = new_ret
    l+=1

def format(x):
    x = list(map(lambda x : chr(x+97),x))
    return "".join(x)

cur_ret = list(map(format,cur_ret))
cur_ret.sort()
for i in cur_ret:
    print(i)
N = int(input())
chl = "abcdefghijk"
chli = {
  'a':0,
  'b':1,
  'c':2,
  'd':3,
  'e':4,
  'f':5,
  'g':6,
  'h':7,
  'i':8,
  'j':9
}

def ret(M):
  if M == 1:
    return "a"
  retl = []
  for stra in ret(M-1):
    maxi = min(chli[stra[-1]] + 2, 10)
    cand = chl[:maxi]
    for ch in cand:
      retl.append(stra + ch)
  return retl

ans = ret(N)

for x in ans:
  print(x)
N = int(input())

a_num = 97

def dfs(s, n, cnt): #s: 現在の文字列, n: 残りの文字数, cnt: 現在の文字列の最大の値
    if n == 0:
        print(s)
        return
    for i in range(cnt+2):
        dfs(s+chr(a_num+i), n-1, cnt+i)

dfs("a", N-1, 0)
n=int(input())

abc='abcdefghijklmnopqrstuvwxyz'

def dfs(keta,s):
  if keta==n:
    global ans
    ans.append(s)
    return

  for i in range(keta+1):
    dfs(keta+1,s+abc[i])

ans=[]
dfs(1,'a')

ans.sort()
for i in ans:
  print(i)
n = int(input())
anstmp = ["a"]
cnt = 0
for i in anstmp:
  t = ord(i[-1])-95
  if cnt > 100000:
    break
  for j in range(1,t+1):
    anstmp.append(i+chr(j+96))
  cnt += 1
ans = []
for i in anstmp:
  if len(i) == n:
    ans.append(i)
ans.sort()
print(*ans,sep="\n")
import sys
stdin = sys.stdin
sys.setrecursionlimit(10**9)
ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
nn = lambda: list(stdin.readline().split())
ns = lambda: stdin.readline().rstrip()

al = ['a','b','c','d','e','f','g','h','i','j']

n = ni()

import numpy as np

for i in range(2**(n-1)):
  k = [0]+list(map(int,format(i, 'b')))
  p = np.cumsum(k)
  ans = [str(al[j]) for j in p]
  print(''.join(ans))
n=int(input())

al=['a','b','c','d','e','f','g','h','i','j']

ans=[]

st='a'

temp=0
now=0

def dfs(st,n,now,temp):
  if now==n-1:
    ans.append(st)
  else:
    dfs(st+al[temp],n,now+1,temp)
    dfs(st+al[temp+1],n,now+1,temp+1)
    
dfs(st,n,0,0)

for h in ans:
  print(h)
n=int(input())
from collections import deque
d=deque()
e=deque()
d.append("a")

alpha=list("abcdefghijklmnopqrstuvwxyz")
dic={alpha[i]:i for i in range(26)}
for i in range(n-1):
    while d:
        x=d.popleft()
 
        for j in range(dic[(x[-1])]+2):
            e.append(x+alpha[int(j)])  
    d=e
    e=deque()
d=list(d)

if n==1:
    print("a")
else:
    d=sorted(d)
    for some in d:
        print(some)
N = int(input())
alp = ["a","b","c","d","e","f","g","h","i","j"]
a = "a"
A = "a"
for i in range(N):
    word = [a]
    a = a + "a"
for i in range(N):
    word = [A]
    A = A + alp.pop(0)
newword = sorted(word)
s = "\n".join(newword)
print(s)
import sys
sys.setrecursionlimit(10**7)
N = int(input())
N -= 1

S = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n"]


def dfs(s, depth, maxS):

    if depth == N:
        print(s)
        return

    for i in range(maxS+1):
        dfs(s + S[i], depth+1, maxS+1)


dfs("a", 0, 1)
def solve(li):
    if len(li) == n:
        ans.append(li)
        return
    for i in range(1, li[-1] + 2):
        solve(li + [i])

ans = []
n = int(input())
solve([1])
res = []
alph = "abcdefghijklmnopq"

for ptn in ans:
    for i in range(n):
        ptn[i] = alph[ptn[i] - 1]
    res.append("".join(ptn))
res = sorted(res)
for i in res:
    print(i)
n=int(input())
char=[chr(i) for i in range(97, 97+26)]

ans=["a"]
before=0

for i in range(2,n+1):
    for c in range(len(ans)):
        From=char.index(ans[c][-1])
        for m in range(From+2):
            ans.append(ans[c]+char[m])
    #print(ans)
    
b=[]

for g in range(len(ans)):
    if len(ans[g])==n:
        b.append(ans[g])

b.sort()

for i in range(len(b)):
    print(b[i])
n = int(input())


A = ['a']

for i in range(n-1):
    B = A[i:]
    for j in B:
        A.append("".join(j) + j[-1])
        A.append("".join(j) + chr(ord(j[-1]) + 1))
A = sorted(A)
for i in A:
    if len(i) == n:
        print(i)
n=int(input())
i=0
while n>0:
    print('a'*n+'b'*i)
    i+=1
    n-=1
N = int(input())

# mx = count up flag
def dfs(s, mx):
    print('dfs(', s, ', ', str(mx), ')')
    if len(s) == N:
        print(s)
    else:
        for c in range(ord('a'), mx+1):
            dfs(s+chr(c), mx + 1 if c == mx else mx)

dfs("", ord('a'))
n = int(input())
a = ["a","b","c","d","e","f","g","h","i","j"]
def dfs(s):
  m = len(s)
  if m == n:
    ans = ""
    for i in range(n):
      ans += a[int(s[i])]
    print(ans)
  else:
    dfs(s+str(int(s[m-1])))
    dfs(s+str(int(s[m-1])+1))

dfs("0")
import sys
sys.setrecursionlimit(10**7)
n = int(input())

def dfs(s, mx):
  if len(s) == n:
    print(s)
  else:
    dfs(s+chr(ord("a")+mx), mx)
    dfs(s+chr(ord("a")+mx+1), mx+1)

dfs("a", 0)
#!/usr/bin/env python3
N = int(input())
ans = ["a"] * N
for i in range(2**(N-1)):
    tmp = i
    memo = len(ans) - 1
    while tmp > 0:
        if tmp % 2 == 0:
            ans[memo] = "a"
        else:
            ans[memo] = "b"
        tmp //= 2
        memo -= 1
    print(''.join(ans))
from collections import defaultdict
n=int(input())
al=[chr(ord('a') + i) for i in range(26)]
norm=defaultdict(list)
for i in range(11):
  if i==0:
    norm[1]=['a']
  else:
    for char in norm[i-1]:
      last=char[-1]
      range_digit=al.index(last)+2
      for s in al[0:range_digit]:
        norm[i].append(char+s)

for char in norm[n]:
  print(char)
import math
s = input()
n = math.ceil(len(s)/2)
hitachi = ""
for i in range(n):
  hitachi += "hi"
if hitachi in s:
  print("Yes")
else:
  print("No")
def resolve():
    S = input()

    S_list = list(S)

    if len(S_list) % 2 == 0:
        s_len = int(len(S_list) / 2)
        if S == s_len * 'hi':
            print('Yes')
            return

    print('No')
    return

if __name__ == "__main__":
    resolve()
from sys import stdin
s = stdin.readline().rstrip()
k = len(s)
if k%2 == 1:
    print("No")
else:
    if s == "hi"*(k//2):
        print("Yes")
    else:
        print("No")
S = str(input())
 
S1 = S.replace("hi", "")
if S1 == "":
  print("Yes")
else:
  print("No")
def solve(s):
    return "Yes" if "hi" * (len(s) // 2) == s else "No"

assert solve("hihi") == "Yes"
assert solve("hi") == "Yes"
assert solve("ha") == "No"
assert solve("hii") == "No"

s = input()
print(solve(s))
s = input()

if len(s) % 2 ==1:
	print('No')
	exit()

if s == "hi"* (len(s) // 2):
	print('Yes')
else:
	print('No')
'''
Created on 2020/08/20

@author: harurun
'''
def main():
  import re
  import sys
  pin=sys.stdin.readline
  pout=sys.stdout.write
  perr=sys.stderr.write

  S=pin()[:-1]
  if re.fullmatch(r"(hi)+",S)==None:
    print("No")
    return 
  print("Yes")
  return 

main()
s=input()
a=[]
cnt=""
for i in range(5):
    cnt+="hi"
    a.append(cnt)
if s in a:
    print('Yes')
else:
    print('No')
S = input()

ANS = ['hi', 'hihi', 'hihihi', 'hihihihi', 'hihihihihi']
if S in ANS:
    print('Yes')
else:
    print('No')
from sys import stdin

s = stdin.readline().rstrip()

ans = "Yes"
if len(s)%2 != 0:
    ans = "No"
else:
    for i in range(0, len(s), 2):
        if s[i] + s[i+1] != "hi":
            ans = "No"
print(ans)
S=input()

if S=="hi" or S=="hihi" or S=="hihihi" or S=="hihihihi" or S=="hihihihihi":
    print("Yes")
else:
    print("No")
s = str(input())
flag = 0
a = []
if(len(s)%2 != 0):
    print("No")
    exit()
else:
    for i in range(0,len(s),2):
        if(s[i] != "h" or s[i+1] != "i"):
            print("No")
            exit()
print("Yes")
import sys
import copy
import math
import bisect
import pprint
import bisect
from functools import reduce
from copy import deepcopy
from collections import deque

def lcm(x, y):
    return (x * y) // math.gcd(x, y)

if __name__ == '__main__':
    s = input()
    s = s.replace("hi","")

    if s =="":
        print("Yes")
    else:
        print("No")
S = input()
print("Yes" if S.count("hi")*2==len(S) else "No")
s = input()
if len(s) % 2 == 1:
    print("No")
else:
    for i in range(len(s)//2):
        if s[i*2] != 'h' or s[i*2+1] != 'i':
            print("No")
            exit()
    print("Yes")
s = input()
if s == 'hi' * (len(s) // 2):
    print('Yes')
else:
    print('No')
s = input()
t =0 
for s in s:
  if s == "h":
    t=1
  elif s =="i":
    if t == 0:
      t = 0
      print("No")
      quit()
    t = 0
  else:
    print("No")
    quit()
if t == 1:
  print("No")
else:
  print("Yes")
class gv:
    input = None;
    
def build():
    gv.str = input()

def solve():
    slen = len(gv.str)
    if (slen&1) == 1:
        print("No")
        return
    
    for i in range(0,slen,2):
        if (gv.str[i:i+2] == "hi") :
            pass
        else :
            print("No")
            return
    
    print("Yes")
    
    

if __name__ == '__main__':
    build()
    solve()
s = input()
 
if s == "hi" * int(len(s) / 2):
  print("Yes")
else:
  print("No")
s = input()

if s == 'hi' or s == 'hihi' or s == 'hihihi' or s == 'hihihihi' or s == 'hihihihihi':
  print('Yes')
else:
  print('No')
def inpl():
    return list(map(int, input().split()))


S = input()

if len(S) % 2 == 1:
    print("No")
    exit()

for i in range(0, len(S), 2):
    if S[i:i + 2] != "hi":
        print("No")
        break
else:
    print("Yes")
S = str(input())
hitati = ["hi","hihi","hihihi","hihihihi","hihihihihi"]

if S in hitati:
    print("Yes")
else:
    print("No")
S = input()
st = []
if len(S) %2 != 0 :
    print('No')
else :
    for i in range(len(S) // 2) :
        st.append(S[i*2:i*2+2])
      
    st = list(set(st)) 
    if len(st) == 1 and st[0] == 'hi' :
        print('Yes')
    else :
        print('No')
S = input()
if set(S[0::2]) == set('h') and set(S[1::2]) == set('i') and len(S) % 2 == 0:
    ans = True
else:
    ans = False
if ans:
    print('Yes')
else:
    print('No')
import sys
def input(): return sys.stdin.readline().strip()

def resolve():
    s=input()
    if s in ['hi','hihi','hihihi','hihihihi','hihihihihi']:
            print('Yes')
    else:
            print('No')
resolve()
s = input()
ans = True if len(s)%2 == 0 else False
for i in range(len(s)//2):
    if i%2 == 1:
        continue
    if s[i:i+2] != "hi":
        ans = False

print("Yes" if ans else "No")
S = input()
cand = ['hi','hihi','hihihi','hihihihi','hihihihihi']
if S in cand:
    ans = 'Yes'
else:
    ans = 'No'
print(ans)
s = input()
if s == 'hi' * int(len(s)//2):
    print('Yes')
else:
    print('No')
S = input()
a = "No"
for i in range(1, 11):
    if S == "hi"*i:
        a = "Yes"
print(a)
s = input()
if s == "hi" or s == "hihi" or s == "hihihi" or s == "hihihihi" or s == "hihihihihi":
    print("Yes")
else:
    print("No")
#n = int(input())
s = input()
#a,b = map(int,input().split())
#a_L = list(map(int,input().split()))

if s == "hi":
    print("Yes")
    exit()
s = s.split("hi")
for i in s:
    if i != "":
        print("No")
        exit()
print("Yes")
# if len(s) != 1:
#     print("Yes")
# else:
#     print("No")
import sys
def input(): return sys.stdin.readline().rstrip()

def main():
    S = input()
    l = len(S)
    if l % 2 != 0:
        print('No')
    elif S.count('hi') == l // 2:
        print('Yes')
    else:
        print('No')

if __name__ == '__main__':
    main()
S = input()

HI ='hi'

flag = False

for i in range(5):
  if S == HI * (i +1):
    flag = True
    break

if flag == True:
  print('Yes')
else:
  print('No')
s = input()
if len(s.replace("hi", "")) == 0:
    print("Yes")
else:
    print("No")
s = input()

ans = True

while len(s) > 0:
    if len(s) == 1:
        print('No')
        exit(0)
    if s[0] == 'h' and s[1] == 'i':
        s = s[2:]
    else:
        ans = False
        break

if ans:
    print('Yes')
else:
    print('No')
import sys
input = sys.stdin.readline
"""
N,X=map(int,input().split())
vA=list(map(int,input().split()))
vA.sort()
"""

S=input().rstrip()
T="hi"

res=any(S==T*i for i in range(1,6))
print("No Yes".split()[res])
#print(res)
string = input()

if(len(string) % 2 != 0):
    print("No")
    exit()

for i in range(0, 10, 2):
    if len(string) > i:
        if string[i] != 'h' or string[i + 1] != 'i':
            print("No")
            exit()

print("Yes")
S=input()
S = set(S.replace("hi","*"))
if S == set("*"):
    print("Yes")
else:
    print("No")
S = input()
C = S.count("hi")
if len(S) == C * 2:
    print("Yes")
else:
    print("No")
S = input()
hitachi = ['hi'*i for i in range(1,6)]
if S in hitachi:
    print('Yes')
else:
    print('No')
from collections import Counter,defaultdict,deque
from heapq import heappop,heappush,heapify
import sys,bisect,math,itertools,fractions,pprint
sys.setrecursionlimit(10**8)
mod = 10**9+7
INF = float('inf')
def inp(): return int(sys.stdin.readline())
def inpl(): return list(map(int, sys.stdin.readline().split()))
def inpln(n): return list(int(sys.stdin.readline()) for i in range(n))

s = input()
n = len(s)
if n %2: print('No'); quit()
for i in range(n//2)[::2]:
    if s[i] == 'h' and s[i+1] == 'i':
        continue
    print('No')
    quit()
print('Yes')
s = input()

if s == "hi" or s == "hihi" or s == "hihihi" or s =="hihihihi" or s =="hihihihihi" or s =="hihihihihihihi" or s =="hihihihihihihihi" or s =="hihihihihihihihihi" or s =="hihihihihihihihihihi":
    print("Yes")
else:
    print("No")
s = input()
cont = len(s)//2
if s == "hi"*cont:
    print("Yes")
else:
    print("No")
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

S = read().rstrip().decode()

def solve(S):
    N = len(S)
    if N % 2 == 1:
        return False
    T = 'hi' * (N//2)
    return S == T

print('Yes' if solve(S) else 'No')
S = str(input())

if len(S)%2 == 0:
  tes = "hi"*int((len(S)/2))
  if S ==tes:
    print("Yes")
  else:
    print("No")
else:
  print("No")
S = input()
ok = True
for i in range(0, len(S), 2):
    try:
        if not (S[i] == "h" and S[i + 1] == "i"):
            ok = False
            break
    except IndexError:
        ok = False
        break
print("Yes" if ok else "No")
s = input().split('hi')
ans = 'Yes'
for i in s:
  if i != '':
    ans = 'No'
    break

print(ans)
S=[i for i in input()]
flg = True
while len(S)>=2:
    if S[0]=="h" and S[1]=="i":
        del S[0:2]
    else:
        flg = False
        break
if flg and len(S)==0:
    print("Yes")
else:
    print("No")
S = input()
pattern = 'hi'
cnt = len(S)//2
for _ in range(cnt-1):
    pattern += 'hi'

if S == pattern:
    print('Yes')
else:
    print('No')
# coding: utf-8
# Your code here!
s = list(input())
Flg = True
if len(s) % 2 == 1:
    Flg = False
for i in range(len(s)-1):
    if i % 2 == 0:
        if s[i] == 'h' and s[i+1] == 'i':
            pass
        else:
            Flg = False
if Flg:
    print('Yes')
else:
    print('No')
S = input()

for i in range(0,len(S),2):
  if not S[i:i+2] == 'hi':
    print('No')
    exit(0)

print('Yes')
S = input()

if len(S) % 2 > 0:
    print('No')
else:
    if S[0::2].count('h') == len(S) // 2 and S[1::2].count('i') == len(S) // 2:
        print('Yes')
    else:
        print('No')
#A - Hitachi String
S = list(input())
count = 0
if len(S) % 2 == 1:
    print("No")
    exit()
else:

    for i in range(0,int(len(S)//2),2):
        if S[i]+S[i+1] == "hi":
            pass
        else:
            print("No")
            exit()

    print("Yes")
S = input()
hantei = True

for i in range(0,len(S)-1,2):
  if S[i]+S[i+1] != 'hi':
    hantei = False
if len(S) % 2 == 1:
  hantei = False
    
if hantei == True:
  print('Yes')
else:
  print('No')
S = input()
S = S.replace("hi", "")
if S:
    print("No")
else:
    print("Yes")
S = input()
ans = "Yes"
if len(S)%2==1:ans = "No"
for i in range(len(S)//2):
    if S[i*2]+S[i*2+1]!="hi":
        ans = "No"
print(ans)
import re

S = input()

hslist = ["hi","hihi","hihihi","hihihihi","hihihihihi"]

if S in hslist:
  print("Yes")
else:
  print("No")
s = input()

ans = "No"
if s == "hi":
    ans = "Yes"
elif s == "hihi":
    ans = "Yes"
elif s == "hihihi":
    ans = "Yes"
elif s == "hihihihi":
    ans = "Yes"
elif s == "hihihihihi":
    ans = "Yes"

print(ans)
S = input()
n = len(S) // 2

if 'hi' * n == S:
  print('Yes')
else:
  print('No')
s = input()
for i in range(0, len(s), 2):
    if s[i:i+2] != 'hi':
        print('No')
        exit()
print('Yes')
S=input()
if(len(S)%2==0):
  for i in range(len(S)//2):
    if(S[2*i]!="h" or S[2*i+1]!="i"):
      print("No")
      break
  else:
    print("Yes")
else:
  print("No")
S=list(str(input()))

l=len(S)
if l%2 != 0:
    print("No")
    exit()


for i in range(l):
    if i%2 == 0 and S[i]!="h":
        print("No")
        exit()
    if i%2 != 0 and S[i]!="i":
        print("No")
        exit()
print("Yes")
S = input()

c = 0
while c < 5:
    c+=1
    if S == 'hi'*c:
        print('Yes')
        exit()
print('No')
S=input()
length=int(len(S))
#print(length)

if length<=1:
    print("No")
elif length%2!=0 :
    print("No")
else:
    for i in range(length//2):
        if S[2*i]=="h" and S[2*i+1]=="i":
            temp=0
        else:
            print("No")
            temp=1
            break
            
    if temp==0:
        print("Yes")
    else:
        nothing=0
S = input()
if len(S) % 2 != 0:
  print("No")
else:
  N = len(S)
  p = 0
  for i in range(0, N, 2):
    if S[i:i+2] != 'hi':
      p += 1
  if p == 0:
    print("Yes")
  else:
    print("No")
s = list(input())
if s[::2].count('h') == len(s[::2]) and s[1::2].count('i') == len(s[1::2]) and len(s)%2 == 0:
    print('Yes')
else:
    print('No')
S = input()
if len(S) % 2!=0:
    print("No")
else:
    for i in range(6):
        if "hi" * i == S:
            print("Yes")
            exit()
    print("No")
class gv:
    input = None;
    
def build():
    gv.str = input()

def solve():
    slen = len(gv.str)
    if (slen&1) == 1:
        print("No")
        return
    
    for i in range(0,slen,2):
        if (gv.str[i:i+2] == "hi") :
            pass
        else :
            print("No")
            return
    
    print("Yes")
    
    

build()
solve()
s=input()
a=0
if s=='hi':
  print('Yes')
elif s=='hihi':
  print('Yes')
elif s=='hihihi':
  print('Yes')
elif s=='hihihihi':
  print('Yes')
elif s=='hihihihihi':
  print('Yes')
else:
  print('No')
s = input()
if s == "hi" or s == "hihi" or s == "hihihi" or s == "hihihihi" or s == "hihihihihi" :
    print("Yes")
else:
    print("No")
S = input()

if len(S) % 2 == 0 and S.count('hi') == len(S)//2:
    print('Yes')
else:
    print('No')
s = input()
h = s.replace('hi', '')
if h == '':
    print('Yes')
else:
    print('No')
S = input()
N = S.count("hi")
L = len(S)
if int(N)*2 == int(L):
	print("Yes")
else:
	print("No")
S=input()
N=len(S)
if N%2!=0:
    print("No")
    exit()

for i in range(N//2):
    if S[i*2:(i*2)+2]!="hi":
        print("No")
        exit()
print("Yes")
s=input()
ans="No"

if s=="hi":
    ans="Yes"
if s=="hihi":
    ans="Yes"
if s=="hihihi":
    ans="Yes"
if s=="hihihihi":
    ans="Yes"
if s=="hihihihihi":
    ans="Yes"
print(ans)
s = input()
l = len(s)//2
if 'hi'*l == s:
  print('Yes')
else:
  print('No')
h = input()

result = 'Yes'

if len(h)%2 != 0:
  result ='No'
  
for a in range(0,len(h)-1,2):  
  b = h[a:a+2]
  if b != 'hi':
    result = 'No'
    break
    
print(result)
S = input()

if S == 'hi' or S == 'hihi' or S == 'hihihi' or S == 'hihihihi' or S == 'hihihihihi':
    print('Yes')
else:
    print('No')
S=input()

for i in range(len(S)):
  if i%2==0 and S[i]!="h":
    print("No")
    exit()
  elif i%2==1 and S[i]!="i":
    print("No")
    exit()

if len(S)%2==0:
  print("Yes")
else:
  print("No")
n=input()
import re
n2 = re.split('(..)',n)[1::2]


if len(n) % 2 != 0:
    print('No')
else: 
    cnt = 0
    for i,s in enumerate(n2):
        if 'hi' in s:
            cnt += 1
    if cnt == len(n2):
        print('Yes')
    else:
        print('No')
s = input()
hi = [s[i:i+2] for i in range(0, len(s), 2)]

a = 0
for i in range(len(hi)):
  if hi[i] != 'hi':
    a += 1
    break
    
if a == 1:
  print('No')
else:
  print('Yes')
s = input()
l = s[0::2]
m = s[1::2]
if set(l) == {'h'} and set(m) == {'i'} and len(s)%2==0:
    print('Yes')
else:
    print('No')
S = input()
tmp = ""
for i in range(5):
    tmp += "hi"
    if tmp == S:
        print("Yes")
        exit()
print("No")
s = input()

hi = 'hi'

if s =='hi' or s == 'hihi' or s == 'hihihi' or s == 'hihihihi' or s == 'hihihihihi':
    print('Yes')
else:
    print('No')