qyliang/CodeNanoFix huggingface dataset:
Buggy code:
S = input()
A = set([i for i in S])
for j in range(len(A)):
  if S.count(A[j]) % 2 == 1:
    print("Yes")
    sys.exit()
  else:
    None
print("No")
   


Fixed code:
import sys
S = input()
A = set([i for i in S])
for j in A:
  if S.count(j) % 2 == 1:
    print("No")
    sys.exit()
  else:
    None
print("Yes")
Buggy code:
import collections

w = input()
W = collections.Counter(w).values()

for i in W:
    if i % 2 != 0:
        print('No')
else:
    print('Yes')

Fixed code:
import collections

w = input()
W = collections.Counter(w).values()

for i in W:
    if i % 2 != 0:
        print('No')
        break
else:
    print('Yes')
Buggy code:
import sys
input = sys.stdin.readline

s = input()

arr = [(s.count(num)%2==0) for num in s]

print("Yes" if all(arr) else "No")


Fixed code:
import sys
input = sys.stdin.readline

s = input().strip()

arr = [(s.count(num)%2==0) for num in s]

print("Yes" if all(arr) else "No")
Buggy code:
import sys

input = sys.stdin.readline

def main():
    ans = 'Yes'
    w = input()
    s = set(w)
    for i in s:
        if w.count(i)%2 != 0:
            ans = 'No'
            break
    print(ans)

if __name__ == '__main__':
    main()

Fixed code:
import sys

input = sys.stdin.readline

def main():
    ans = 'Yes'
    w = input().rstrip('\n')
    s = set(w)
    for i in s:
        if w.count(i)%2 != 0:
            ans = 'No'
            break
    print(ans)

if __name__ == '__main__':
    main()
Buggy code:
w = input()

hist = dict()
for char in w:
  if not char in hist.keys():
    hist[char] = 1
  else:
    hist[char] += 1

for value in hist.values():
  if value % 2 == 1:
    print ('No')

print ('Yes')

Fixed code:
w = input()


hist = dict()
for char in w:
  if not char in hist.keys():
    hist[char] = 1
  else:
    hist[char] += 1

answer = True
for value in hist.values():
  if value % 2 == 1:
    answer = False

if answer:
  print ('Yes')
else:
  print('No')
Buggy code:
# -*- coding:utf-8 -*-
import sys
input = sys.stdin.readline
w = input()
w_set = set(w)
for i in w_set:
  if w.count(i)%2==1:
    print("No")
    sys.exit()
  else:
    continue
print("Yes")

Fixed code:
# -*- coding:utf-8 -*-
import sys
# input = sys.stdin.readline
w = list(input())
w_set = set(w)
for i in w_set:
  if w.count(i)%2==1:
    print("No")
    sys.exit()
  else:
    continue
print("Yes")
Buggy code:
import sys
def input(): return sys.stdin.readline().strip()

def resolve():
    def main():
        w=list(input())
        w.sort()
        if len(w)%2!=0:
            print('No')
        else:
            for i in range(0,len(w)-1,2):
                if w[i]!=w[i+1]:
                    return 'No'
            return 'Yes'
    print(main())
resolve()

Fixed code:
import sys
def input(): return sys.stdin.readline().strip()

def resolve():
    def main():
        w=list(input())
        w.sort()
        if len(w)%2!=0:
            return 'No'
        else:
            for i in range(0,len(w)-1,2):
                if w[i]!=w[i+1]:
                    return 'No'
            return 'Yes'
    print(main())
resolve()
Buggy code:
w = input()
alp = 'abcdefghijklmnopqrstuvwxyz'
c = []
for i in range(26):
    a = w.count(alp[i])
    c.append(a)
d = 0
for i in range(len(w)):
    if int(c[i]) % 2 == 0:
        d = 1
    else:
        break
if d == 0:
    print('No')
else:
    print('Yes')

Fixed code:
w = input()
alp = 'abcdefghijklmnopqrstuvwxyz'
c = []
for i in range(26):
    a = w.count(alp[i])
    c.append(a)
d = 0
for i in range(26):
    if c[i] % 2 == 0:
        d = 1
    else:
        d = 0
        break
if d == 0:
    print('No')
else:
    print('Yes')
Buggy code:
w = input()
flg = True
for i in list("abcdefghijklmnopqrstuvwxyz"):
    if w.count(w[i]) % 2 != 0:
        flg = False

if flg:
    print('Yes')
else:
    print('No')
    


Fixed code:
w = input()
flg = True
for i in list("abcdefghijklmnopqrstuvwxyz"):
    if w.count(i) % 2 != 0:
        flg = False

if flg:
    print('Yes')
else:
    print('No')
Buggy code:
w = input()

w_set = set( w )

print( w_set )

for each_ch in w_set:
	print( str( each_ch ) + " " + str( w.count( each_ch ) ) )
	if w.count( each_ch ) % 2 == 1:
		print( "No" )
		exit()

print( "Yes" )

Fixed code:
w = input()
w_set = set( w )
for each_ch in w_set:
	if w.count( each_ch ) % 2 == 1:
		print( "No" )
		exit()

print( "Yes" )
Buggy code:
main():
  ans = func(input())
  print(ans)
  
  
def func(sentence):
  unique_list = set(sentence)
  for s in unique_list:
    if sentence.count(s) % 2 != 0:
      return('No')
      break
  return('Yes')

if __name__ == '__main__':
  main()

Fixed code:
def main():
  ans = func(input())
  print(ans)
  
  
def func(sentence):
  unique_list = set(sentence)
  for s in unique_list:
    if sentence.count(s) % 2 != 0:
      return('No')
      break
  return('Yes')

if __name__ == '__main__':
  main()
Buggy code:
from collections import Counter

w = input()

char_counter = Counter()

for c in w:
  char_counter[c] += 1
  
print(char_counter)

is_beautiful = "Yes"
for c in char_counter.most_common():
  if c[1] % 2 == 1:
    is_beautiful = "No"

print(is_beautiful)

Fixed code:
from collections import Counter
 
w = input()
 
char_counter = Counter()
 
for c in w:
  char_counter[c] += 1
 
is_beautiful = "Yes"
for c in char_counter.most_common():
  if c[1] % 2 == 1:
    is_beautiful = "No"
 
print(is_beautiful)
Buggy code:
x = input()
s = set(list(x))
f = 0
for i in s:
  x.count(i) % 2 == 1:
    f = 1
    break
  
if f == 1:
  print("No")
else:
  print("Yes")





Fixed code:
x = input()
s = set(list(x))
f = 0
for i in s:
  if x.count(i) % 2 == 1:
    f = 1
    break
  
if f == 1:
  print("No")
else:
  print("Yes")
Buggy code:
w=input()
flag=0
for i in list(set(w)):
    if w.count(i)%2==1:
        flag=1
        print(i)
if flag:print('No')
else:print('Yes')

Fixed code:
w=input()
flag=0
for i in list(set(w)):
    if w.count(i)%2==1:
        flag=1
if flag:print('No')
else:print('Yes')
Buggy code:
import re

list = input('>>')
list_set = set(list)
for set_string in list_set:
    cheak = re.findall(set_string, list)
    if len(cheak) % 2 ==0:
        continue
    else:
        print('No')
        exit()
print('YES')


Fixed code:
import re

list = input()
list_set = set(list)
for set_string in list_set:
    cheak = re.findall(set_string, list)
    if len(cheak) % 2 ==0:
        continue
    else:
        print('No')
        exit()
print('Yes')
Buggy code:
w = str(input())
ar = []
a = 0

for j in range(97, 123):
    b = w.count(chr(j))
    if b %2 == 1:
        print("No")
        break

    else:
        a += 1

if 1 <= a:
    print("Yes")


Fixed code:
w = str(input())
ar = []
a = 0

for j in range(97, 123):
    b = w.count(chr(j))
    if b %2 == 1:
        print("No")
        a = 0
        break

    else:
        a = 1
if a == 1:
    print("Yes")
Buggy code:
w = input()
A = [0] * 26

for in in w:
    A[ord(i) - 97] += 1

flag = True
for a in A:
    if a % 2 == 1:
        flag = False


if flag == False:
    print("No")
else:
    print("Yes")

Fixed code:
w = input()
A = [0] * 26

for i in w:
    A[ord(i) - 97] += 1

flag = True
for a in A:
    if a % 2 == 1:
        flag = False


if flag == False:
    print("No")
else:
    print("Yes")
Buggy code:
import string
w = input()
for a in string.ascii_lowercase:
    cnt = 0
    for t in w:
        if t == a:
            cnt = cnt + 1
    if cnt % 2 == 0:
        print("No")

print("Yes")

Fixed code:
import string
w = input()
for a in string.ascii_lowercase:
    cnt = 0
    for t in w:
        if t == a:
            cnt = cnt + 1
    if cnt % 2 == 1:
        print("No")
        exit()

print("Yes")
Buggy code:
#!/usr/bin/env python
#coding:utf-8

def input_strs():
    return input().split(" ")

def input_nums():
    return [int(i) for i in input_strs()]


w = input()
ok = True
h = []
for c in w:
    p = 0
    if c in h:
        break
    h.append(c)
    for k in w:
        if c == k:
            p += 1
    ok = (p % 2 == 0)
if ok:
    print("Yes")
else:
    print("No")


Fixed code:
#!/usr/bin/env python
#coding:utf-8

def input_strs():
    return input().split(" ")

def input_nums():
    return [int(i) for i in input_strs()]


w = input()
ok = True

for c in w:
    p = 0
    for k in w:
        if c == k:
            p += 1
    ok = ok and (p % 2 == 0)

if ok:
    print("Yes")
else:
    print("No")
Buggy code:
w = input()
for i in range(ord('a'), ord('z') + 1):
  c = str(i)
  if w.count(c) % 2 == 1:
    print('No')
    break
else:
  print('Yes')


Fixed code:
w = input()
for i in range(ord('a'), ord('z') + 1):
  c = chr(i)
  if w.count(c) % 2 == 1:
    print('No')
    break
else:
  print('Yes')
Buggy code:
l = list(input)
s = set(l)
for i in s:
    if l.count(i)%2 != 0:
        print("No")
        exit()
print("Yes")

Fixed code:
l = list(input())
s = set(l)
for i in s:
    if l.count(i)%2 != 0:
        print("No")
        exit()
print("Yes")
Buggy code:
W = input()

r = {}
for w in W:
    r.setdefault(w, 0)
    r[w] += 1

print("Yes" if len(list(filter(lambda x: x % 2 == 1, r))) == 0 else "No")


Fixed code:
W = input()

r = {}
for w in W:
    r.setdefault(w, 0)
    r[w] += 1

print("Yes" if len(list(filter(lambda x: x % 2 == 1, r.values()))) == 0 else "No")
Buggy code:
w=sorted(input())
if len(w)%2==1:
    print('No')
else:
    while len(w)>=2:
        if w.pop(0)!=w.pop(0):
            print('No')
            exit()
	print('Yes')

Fixed code:
w=sorted(input())
if len(w)%2==1:
    print('No')
else:
    while len(w)>=2:
        if w.pop(0)!=w.pop(0):
            print('No')
            exit()
    print('Yes')
Buggy code:
from collections import Counter
s=input()
d=Conter(s)
da=[i for i in d if d[i]%2==0]
if len(da)==len(set(s)):
  print("Yes")
else:
  print("No")

Fixed code:
from collections import Counter
s=input()
d=Counter(s)
da=[i for i in d if d[i]%2==0]
if len(da)==len(set(s)):
  print("Yes")
else:
  print("No")
Buggy code:
w = input()

sw = set(w)

for s in sw:
  if w.count(s) != 2:
    print("No")
    exit(0)

print("Yes")



Fixed code:
w = input()
sw = set(w)

for s in sw:
  if w.count(s)%2 != 0:
    print("No")
    exit(0)

print("Yes")
Buggy code:
def q69(w):
    word_count = {}
    for i in w:
        if i in word_count:
            word_count[i] += 1
        else:
            word_count[i] = 1

    for i in word_count.values():
        if i // 2 == 0:
            print(i)
        else:
            return 'No'
    return 'Yes'
            
w = list(input())
print(q69(w))


Fixed code:
def q69(w):
    word_count = {}
    for i in w:
        if i in word_count:
            word_count[i] += 1
        else:
            word_count[i] = 1

    for i in word_count.values():
        if i % 2 != 0:
            return 'No'
        
    return 'Yes'
            
w = list(input())
print(q69(w))
Buggy code:
s = input()
d = {}
for letter in s:
  if letter in d:
    d[letter] += 1
  else:
    d[letter] = 1
    
for key in d:
  if d[key] % 2 != 0:
    print("No")
print("Yes")


Fixed code:
s = input()
d = {}
for letter in s:
  if letter in d:
    d[letter] += 1
  else:
    d[letter] = 1
flag = 1
for key in d:
  if d[key] % 2 != 0:
   
    flag = 0
if(flag == 1):
	print("Yes")
else:
	print("No")
Buggy code:
o = "Yes"
for v in collections.Counter(input().strip()).values():
    if v % 2 != 0: o = "No"
print(o)

Fixed code:
import collections
o = "Yes"
for v in collections.Counter(input().strip()).values():
    if v % 2 != 0: o = "No"
print(o)
Buggy code:
w = input()

s = {}
for c  in w:
    s[c] += 1

b = True
for k,v in s.items():
    b = b and v % 2 == 0

if b:
    print("Yes")
else:
    print("No")


Fixed code:
w = input()

s = {}
for c in w:
    if c in s:
        s[c] += 1
    else:
        s[c] = 1
b = True
for k,v in s.items():
    b = b and v % 2 == 0

if b:
    print("Yes")
else:
    print("No")
Buggy code:
import copy
s = list(input())
def make1d(n):
    return [copy.deepcopy(1) for i in range(0,n)]
t = make1d(26)
for i in range(0, len(s)):
    t[ord(s[i]) - 97] = t[ord(s[i]) - 97] * (-1)
print(t)
u = 1
for i in range(0, len(s)):
    u = u * t[i]
if u == 1:
    print('Yes')
else:
    print('No')

Fixed code:
import copy
s = list(input())
def make1d(n):
    return [copy.deepcopy(1) for i in range(0,n)]
t = make1d(26)
for i in range(0, len(s)):
    t[ord(s[i]) - 97] = t[ord(s[i]) - 97] * (-1)
u = 0
for i in range(0, len(t)):
    u = u + t[i]
if u == 26:
    print('Yes')
else:
    print('No')
Buggy code:
strlist = list(input())
findlist="qazwsxedcrfvtgbyhnujmikolp"
flist=list(findlist)
flag = "Yes"
for a in flist:
    if not strlist.count(a) % 2:
        flag = "No"
print(flag)

Fixed code:
strlist = list(input())
findlist="qazwsxedcrfvtgbyhnujmikolp"
flist=list(findlist)
flag = "Yes"
for a in flist:
    if not strlist.count(a) % 2 == 0:
        flag = "No"
print(flag)
Buggy code:
#ABC044B

import sys
w = input()
l = len(w)
sig = 0

for i in range(l):
    if w.count(w[i])%2 !=0:
        sig = 1
        break

if sig == 1:
    print("No")
print("Yes")
        

Fixed code:
#ABC044B
w = input()
l = len(w)
sig = 0

for i in range(l):
    if w.count(w[i])%2 !=0:
        sig = 1
        break

if sig == 1:
    print("No")
else:
    print("Yes")
Buggy code:
s=input()
print("Yes" if all([s.count(i)%2==0] for i in set(s)] else "No")

Fixed code:
s=input()
print("Yes" if all([s.count(i)%2==0 for i in set(s)]) else "No")
Buggy code:
from collections import defaultdict
s=list(input())
d=defaultdict(0)
for i in s:
  d[i]+=1
for i in d.values():
  if i%2:
    print("No")
    break
else:
  print("Yes")

Fixed code:
from collections import defaultdict
s=list(input())
d=defaultdict(int)
for i in s:
  d[i]+=1
for i in d.values():
  if i%2:
    print("No")
    break
else:
  print("Yes")
Buggy code:
import collections
a=input()
b=[]

for i in a:
  b.append(i)
  
b.sort()
c=collections.Counter(b)
c=list(c.values())

for i in range(len(c)):
  if int(c[i])%2==0:
    q=0
  else:
    q=1
    
if q==0:
  print('Yes')
else:
  print('No')
  

Fixed code:
import collections
import sys
a=input()
b=[]

for i in a:
  b.append(i)
  
b.sort()
c=collections.Counter(b)
c=list(c.values())

for i in range(len(c)):
  if int(c[i])%2==0:
    q=0
  else:
    q=1
    print('No')
    sys.exit()
    
print('Yes')
Buggy code:
import sys
s = input()
ans = {}
for i in s:
  if i in ans:
    ans[i] +=1
  else:
    ans[i] = 0
for i in ans:
  if i%2 !=0:
    print('No')
    sys.exit()
print('Yes')

Fixed code:
import sys
s = input()
ans = {}
for i in s:
  if i in ans:
    ans[i] +=1
  else:
    ans[i] = 1
for i in ans.values():
  if i%2!=0:
    print('No')
    sys.exit()
print('Yes')
Buggy code:
#2019/10/24
S = list(open(0).read())
set_S = list(set(S))
beautiful = [S.count(i)%2 for i in set_S]
print('Yes' if sum(beautiful)==0 else 'No')


Fixed code:
#2019/10/24
# S = list(open(0).read())
S = list(input())
# print(S)
set_S = list(set(S))
beautiful = [S.count(i)%2 for i in set_S]
print('Yes' if sum(beautiful)==0 else 'No')
Buggy code:
a = input()
ans = "Yes"

char_list = list(a)
doubli = list(set(char_list))
#print(doubli)

for x in doubli:
    #print(char_list.count(x))
    if(char_list.count(x) == 1):
        ans = "No"
        break



Fixed code:
a = input()
ans = "Yes"

char_list = list(a)
doubli = list(set(char_list))
#print(doubli)

for x in doubli:
    #print(char_list.count(x))
    if(char_list.count(x) % 2 == 1):
        ans = "No"
        break
print(ans)
Buggy code:
def solve():
    w = list(input())
    s = set(w)
    print(w, s)
    for i in s:
        if len([x for x in w if x == i]) % 2 == 1:
            print('No')
            exit()
    print('Yes')

if __name__ == "__main__":
    solve()

Fixed code:
def solve():
    w = list(input())
    s = set(w)
    for i in s:
        if len([x for x in w if x == i]) % 2 == 1:
            print('No')
            exit()
    print('Yes')

if __name__ == "__main__":
    solve()
Buggy code:
import sys
input = sys.stdin.readline

def solve():
    w = list(input())
    s = set(w)
    for i in s:
        if len([x for x in w if x == i]) % 2 == 1:
            print('No')
            exit()
    print('Yes')

if __name__ == "__main__":
    solve()

Fixed code:
import sys
input = sys.stdin.readline

def solve():
    w = list(input().rstrip())
    s = set(w)
    for i in s:
        if len([x for x in w if x == i]) % 2 == 1:
            print('No')
            exit()
    print('Yes')

if __name__ == "__main__":
    solve()
Buggy code:
w = list(input())
moji = set()
ans = 'Yes'
for i in range(len(w)):
    moji.add(w[i])
for i in moji:
    if (w.count(moji) % 2)!= 0:
        ans = 'No'
print(ans)

Fixed code:
w = list(input())
moji = set()
ans = 'Yes'
for i in range(len(w)):
    moji.add(w[i])

for i in moji:
    if (w.count(i) % 2)!= 0:
        ans = 'No'

print(ans)
Buggy code:
# coding: utf-8
S = input()
cnt = {}
flg = True
for s in S:
  if s in cnt:
    cnt[s] = 1
  else:
    cnt[s] += 1
for i in cnt.values():
  if j % 2 != 0:
    flg = False
print('Yes' if flg else 'No')

Fixed code:
# coding: utf-8
S = input()
cnt = {}
flg = True
for s in S:
  if s not in cnt:
    cnt[s] = 1
  else:
    cnt[s] += 1
for i in cnt.values():
  if i % 2 != 0:
    flg = False
print('Yes' if flg else 'No')
Buggy code:
w = input())
for s in set(w):
    if w.count(s) % 2 != 0:
        print('No')
        break
else:
    print('Yes')

Fixed code:
w = input()
for s in set(w):
    if w.count(s) % 2 != 0:
        print('No')
        break
else:
    print('Yes')
Buggy code:
from collections import Counter

w = Counter(list(input()))

for value in w.values():
    if value % 2 != 0:
        print('No')
else:
    print('Yes')

Fixed code:
from collections import Counter

w = Counter(list(input()))

for value in w.values():
    if value % 2 != 0:
        print('No')
        break
else:
    print('Yes')
Buggy code:
from collections import Counter
s=Counter(input())
for i in s:
    if s[i]%2==1:
        print('NO')
        break
else:print('Yes')

Fixed code:
from collections import Counter
s=Counter(input())
for i in s:
    if s[i]%2==1:
        print('No')
        break
else:print('Yes')
Buggy code:
s = input()
alphabets = [0] * 26
for i in range(len(s)):
    x = ord(s[i])
    alphabets[x-97] += 1
flag = True
for x in alphabets:
    if x % 2 != 0:
        ok = False
if ok:
    print('Yes')
else:
    print('No')

Fixed code:
s = input()
alphabets = [0] * 26
for i in range(len(s)):
  a = ord(s[i])
  alphabets[a-97] += 1
flag = True
for x in alphabets:
  if x % 2 != 0:
    flag = False
if flag:
  print('Yes')
else:
  print('No')
Buggy code:
import sys
w = list(input())

for i in w.count(i):
  if i%2==1:
    print("No")
    sys.exit()
print("Yes")

Fixed code:
import sys
w = list(input())
for i in w:
  if w.count(i) %2 == 1:
    print("No")
    sys.exit()
print("Yes")
Buggy code:
from collections import Counter
r = 0
cnt = Counter(input()):
for c in cnt:
    r += cnt[c] % 2
if r == 0:
    print("Yes")
else:
    print("No")



Fixed code:
from collections import Counter
r = 0
cnt = Counter(input())
for c in cnt:
    r += cnt[c] % 2
if r == 0:
    print("Yes")
else:
    print("No")
Buggy code:
w = list(input())
s = set(w)
ans = 'Yes'

for i in range(len(s)):
  if w.count(s[0]) % 2 == 1:
    ans = 'No'
    break

    print(ans)

Fixed code:
w = list(input())
s = set(w)
s = list(s)
ans = 'Yes'

for i in range(len(s)):
  if w.count(s[i]) % 2 == 1:
    ans = 'No'
    break

print(ans)
Buggy code:
w = input()
dic = {}
for i in range(len(w)):
    dic[w[i]] = w.count(w[i])

a = list(dic.values())
a = [n%2 for n in a]
print("Yes" if all(a)==0 else "No")

Fixed code:
w = input()
dic = {}
for i in range(len(w)):
    dic[w[i]] = w.count(w[i])

a = list(dic.values())
a = [n%2 for n in a]
c = 0
for i in range(len(a)):
    c += a[i]
print("Yes" if c == 0 else "No")
Buggy code:
w = input()
X = [0 for i in range(26)]
for i in range(len(w)):
  X[ord(w[i]) - 97] ^= 1
if sum(X) == 0:
  print("Yes")
else:
  print("No)

Fixed code:
w = input()
X = [0 for i in range(26)]
for i in range(len(w)):
  X[ord(w[i]) - 97] ^= 1
if sum(X) == 0:
  print("Yes")
else:
  print("No")
Buggy code:
w=input()
l='abcdefghijklmnopqrstuvwxyz'
a=0
if len(w)%2!=0:
    print('No')
else:
    for i in range(26):
        if w.count(l[i])%2!=0:
            a+=1
            break
if a==0:
    print('Yes')
else:
    print('No')

Fixed code:
w=input()
l='abcdefghijklmnopqrstuvwxyz'
a=0


for i in range(26):
    if w.count(l[i])%2!=0:
        a+=1
        break
if a==0:
    print('Yes')
else:
    print('No')
Buggy code:
w = input()
f = [False]*26

for c in w:
    f[ord(c)-ord('a')] = not f[ord(c)-ord('a')]
for b in f:
    if f:
        print("Yes")
        break
else:
    print("No")


Fixed code:
w = input()
f = [False]*26

for c in w:
    f[ord(c)-ord('a')] = not f[ord(c)-ord('a')]
for b in f:
    if b:
        print("No")
        break
else:
    print("Yes")
Buggy code:
w = str(input())
s = dic()

for wrd in w:
  if s.get(wrd) is None:
    s[wrd] = 1
  else:
    s[wrd] += 1

ans = 1
for wrd in s:
  if s[wrd] %2 !=0:
    ans = 0
    break
if ans:
  print("Yes")
else:
  print("No")




Fixed code:
w = str(input())
s = {}
 
for wrd in w:
  if s.get(wrd) is None:
    s[wrd] = 1
  else:
    s[wrd] += 1
 
ans = 1
for wrd in s:
  if s[wrd] %2 !=0:
    ans = 0
    break
if ans:
  print("Yes")
else:
  print("No")
Buggy code:
from collection import Counter
S = list(input())

C = Counter(S)

ok = True
for s,x in C.items():
  if x % 2 != 0:
    ok = False
    break

if ok:
  print("Yes")
else:
  print("No")

Fixed code:
from collections import Counter
S = list(input())

C = Counter(S)

ok = True
for s,x in C.items():
  if x % 2 != 0:
    ok = False
    break

if ok:
  print("Yes")
else:
  print("No")
Buggy code:
w = list(input())
w.sort()
i = 0
if len(w) % 2 == 1:
    print('No')
    exit()

while i < len(w)-1:
	if w[i] != w[i+1]:
	    print('No')
            exit()
	i += 2
else:
	print('Yes')

Fixed code:
w = list(input())
w.sort()
i = 0
if len(w) % 2 == 1:
    print('No')
    exit()

while i < len(w)-1:
	if w[i] != w[i+1]:
		print('No')
		exit()
	i += 2
else:
	print('Yes')
Buggy code:
w=input()
x=dict()
for i in range(len(w)):
    if w[i] in x:
        x[w[i]]+=1
    else:
        x[w[i]]=1

for idx in x:
    if x[idx]!=2:
        print("No")
        exit()
print("Yes")

Fixed code:
w=input()
x=dict()
for i in range(len(w)):
    if w[i] in x:
        x[w[i]]+=1
    else:
        x[w[i]]=1

for idx in x:
    if x[idx]%2!=0:
        print("No")
        exit()
print("Yes")
Buggy code:
S = input()
st = set(S)
for i in range(len(st)):
  if S.count(st[i]) % 2 != 0:
    print("No")
    exit()
print("Yes")

Fixed code:
S = input()
st = list(set(S))
for i in range(len(st)):
  if S.count(st[i]) % 2 != 0:
    print("No")
    exit()
print("Yes")
Buggy code:
w=list(input())
ans=sorted(w)

print(ans)
while ans[-1]==ans[-2]:
  del ans[-2:]
  if ans==[] or len(ans)==1:
    break
  print(ans)

if ans==[]:
  print('Yes')
else:
  print('No')



Fixed code:
w=list(input())
ans=sorted(w)

if len(ans)>1:
  while ans[-1]==ans[-2]:
    del ans[-2:]
    if len(ans)==0 or len(ans)==1:
      break

if len(ans)==0:
  print('Yes')
else:
  print('No')
Buggy code:
from collections import Counter
c1 = Counter(input())
for c num in c1:
  if c1[c] % 2 != 0:
    print('No')
    break
else:
  print('Yes')


Fixed code:
from collections import Counter
c1 = Counter(input())
for c in c1:
  if c1[c] % 2 != 0:
    print('No')
    break
else:
  print('Yes')
Buggy code:
n = list(input())

for i in n:
    if n.count(i)%2 != 0:
        print("N0")
        exit()
print("Yes")


Fixed code:
n = list(input())

for i in n:
    if n.count(i)%2 != 0:
        print("No")
        exit()
print("Yes")
Buggy code:
#coding:utf-8
w = input()

for i in range(len(w)):
    if w.count(w[i]) % 2 != 0:
        print('No')
        break

print('Yes')


Fixed code:
#coding:utf-8
w = input()

for i in range(len(w)):
    if w.count(w[i]) % 2 != 0:
        print('No')
        exit()

print('Yes')