qyliang/CodeNanoFix huggingface dataset:
Buggy code:
a=list(input())
b=list(input())
d=""
for i in range(0,len(b)):
    c=a[i]+b[i]
    d=d+c
    if len(b)+1 == len(a):
        d = d+ a[len(a)-1]
print(d)

Fixed code:
a=list(input())
b=list(input())
d=""
for i in range(0,len(b)):
    c=a[i]+b[i]
    d=d+c

if len(b)+1 == len(a):
    d = d+ a[len(a)-1]

print(d)
Buggy code:
o=input()
e=input()
ans=""
for i in range(len(e)):
    ans+=o[i//2]
    ans+=e[i//2]
if len(o)!=len(e):
    ans+=o[len(o)-1]
print(ans)


Fixed code:
o=input()
e=input()
ans=""
for i in range(len(e)):
    ans+=o[i]
    ans+=e[i]
if len(o)!=len(e):
    ans+=o[len(o)-1]
print(ans)
Buggy code:
O,E = input(),input()
ans = ''
if len(O)+len(E)%2==0:
    for i in range(len(O)):
        ans += O[i] + E[i]
else:
    for i in range(len(E)):
        ans += O[i] + E[i]
    ans+=O[-1]
    
print(ans)

Fixed code:
O,E = input(),input()
ans = ''

if (len(O)+len(E))%2==0:
    for i in range(len(E)):
        ans += O[i] + E[i]
else:
    for i in range(len(E)):
        ans += O[i] + E[i]
    ans+=O[-1]
    
print(ans)
Buggy code:
s= input().strip()
t= input().strip()

ls=len(s)
lt=len(t)
v=''
for i in range(ls):
    v+=s[i]+t[i]
if lt!=ls:
    v+=t[-1]
print(v)

Fixed code:
s= input().strip()
t= input().strip()

ls=len(s)
lt=len(t)
v=''
for i in range(lt):
    v+=s[i]+t[i]
if lt!=ls:
    v+=s[-1]
print(v)
Buggy code:
a=input()
b=input()
cnt=0
passw=''
if (len(a)-len(b))==1:
  while 1:
      passw=passw+a[cnt]+b[cnt]
      cnt=cnt+1
      if (cnt+1)>len(b):
        passw=passw+a[cnt+1]
        break
else:
  while 1:
      passw=passw+a[cnt]+b[cnt]
      cnt=cnt+1
      if (cnt+1)>len(b):
        break
print(passw)

Fixed code:
a=input()
b=input()
cnt=0
passw=''
if (len(a)-len(b))==1:
  while 1:
      passw=passw+a[cnt]+b[cnt]
      cnt=cnt+1
      if (cnt+1)>len(b):
        passw=passw+a[cnt]
        break
else:
  while 1:
      passw=passw+a[cnt]+b[cnt]
      cnt=cnt+1
      if (cnt+1)>len(b):
        break
print(passw)
Buggy code:
j=''.join;print(j(map(j,zip(open(0)))))

Fixed code:
j=''.join;print(j(map(j,zip(*open(0)))))
Buggy code:
o=input()
e=input()
if len(o)==len(e):
    ans=o[0]+e[0]
    for i in range(1,len(o)):
        ans=ans+o[i]+e[i]
    print(ans)
else:
    ans=o[0]
    for i in range(len(e)):
        ans=ans+o[i+1]+e[i]
    print(ans)

Fixed code:
o=input()
e=input()
if len(o)==len(e):
    ans=o[0]+e[0]
    for i in range(1,len(o)):
        ans=ans+o[i]+e[i]
    print(ans)
else:
    ans=o[0]
    for i in range(len(e)):
        ans=ans+e[i]+o[i+1]
    print(ans)
Buggy code:
a = input()
b = input()
c = ""
for i in range(len(a)):
  c = c + a[i] + b[i]
if len(a)>len(b):
  c = c + a[len(a)]
print(c)
  

Fixed code:
a = input()
b = input()
c = ""
for i in range(len(b)):
  c = c + a[i] + b[i]
if len(a)>len(b):
  c = c + a[len(a)-1]
print(c)
Buggy code:
O = input()
E = input()
print("".join(i+j for i, j in zip(O, E)))

Fixed code:
O = input()
E = input()
print("".join(i+j for i, j in zip(O, E + ' ')).strip())
Buggy code:
odd = list(map(str, input()))
even = list(map(str, input()))
L=len(odd)*2
li=[]

for i in range(1,L+1):
  if i%2==1:
    if i==1:
      li.append(odd[0])
    else:
      li.append(odd[i//2])
  else:
    li.append(even[i//2-1])
    
print(''.join(li))

Fixed code:
odd = list(map(str, input()))
even = list(map(str, input()))
if len(odd)==len(even):
  L=len(odd)*2
else:
  L=len(odd)+len(even)
li=[]

for i in range(1,L+1):
  if i%2==1:
    if i==1:
      li.append(odd[0])
    else:
      li.append(odd[i//2])
  else:
    li.append(even[i//2-1])
    
print(''.join(li))
Buggy code:
O = input()
E = input()

ans = ""

for i in range(len(O)):
  ans += O[i] + E[i]

if len(O) > len(E):
  ans += O[-1]

print(ans)

Fixed code:
O = input()
E = input()

ans = ""

for i in range(len(E)):
  ans += O[i] + E[i]

if len(O) > len(E):
  ans += O[-1]
  
print(ans)
Buggy code:
o = list(input())
e = list(input())

passw = [""]
for i in range(len(e)):
    passw.append(o[i])
    passw.append(e[i])
    
if len(e)>len(o):
    passw.append(o[i])
    
print(''.join(passw))

Fixed code:
o = list(input())
e = list(input())

passw = [""]
for i in range(len(e)):
    passw.append(o[i])
    passw.append(e[i])
    
if len(o)>len(e):
    passw.append(o[-1])
    
print(''.join(passw))
Buggy code:
O=input()
E=input()
R=[:len(E)]
print(*[e+r for e,r in zip(E,R)],sep="",end="")
if len(O)!=len(E):
  print(O[-1])

Fixed code:
O=input()
E=input()
R=O[:len(E)]
print(*[r+e for r,e in zip(R,E)],sep="",end="")
if len(O)!=len(E):
  print(O[-1])
Buggy code:
o = input()
e = input()
ans = ""
for i in o:
  ans += o[i]
	if len(e) > i:
  		ans += e[i]
print(ans)

Fixed code:
o = input()
e = input()
ans = ""
for i in range(len(o)):
  ans += o[i]
  if len(e) > i:
    ans += e[i]
print(ans)
Buggy code:
o = input()
e = input()
for i,a in enumerate(o):
    for j,b in enumerate(e):
        if(i == j):
            print(a + b, end = '')
    if i == len(o) - 1:
        print(a)


Fixed code:
o = input()
e = input()
for i,a in enumerate(o):
    for j,b in enumerate(e):
        if(i == j):
            print(a + b, end = '')
    if len(o) > len(e) and i == len(o) - 1:
        print(a)
Buggy code:
O = input()
E = input()

for i in range(len(E)):
    print(O[i],end="")
    print(E[i],end="")

if O>E:
    print(O[-1])

Fixed code:
O = input()
E = input()

for i in range(len(E)):
    print(O[i],end="")
    print(E[i],end="")

if len(O)>len(E):
    print(O[-1])
Buggy code:
def main():
  o = input()
  e = input()
  s=""
  for i in range(0,len(e)):
    s =s+o[i]+e[i]
  if len(o)>len(o):
    s += o[len(o)-1]
  print(s)
main()

Fixed code:
def main():
  o = input()
  e = input()
  s=""
  for i in range(0,len(e)):
    s =s+o[i]+e[i]
  if len(o)>len(e):
    s += o[len(o)-1]
  print(s)
main()
Buggy code:
from itertools import zip_longest

O = input()
E = input()

ans = []
for o, e in zip(O, E):
    ans.append(o)
    ans.append(e)

ans = [s for s in ans if s]
print("".join(ans))


Fixed code:
from itertools import zip_longest

O = input()
E = input()

ans = []
for o, e in zip_longest(O, E):
    ans.append(o)
    ans.append(e)

ans = [s for s in ans if s]
print("".join(ans))
Buggy code:
O=input()
E=inpu()
ans=""
for i in range(len(E)):
  ans+=O[i]
  ans+=E[i]

if len(O)!=len(E):
  ans+=O[-1]
print(ans)

Fixed code:
O = input()
E = input()

l = len(E)
ans = ""
for i in range(l):
    ans += O[i]
    ans += E[i]

if (len(O) != l):
    ans += O[-1]

print(ans)
Buggy code:
o=input()
e=input()
moji=""
for i in range(0,len(o)):
  try:
    moji+=o[i]+e[i]
  except IndexError:
    pass
print(moji)
    

Fixed code:
o=input()
e=input()
moji=""
for i in range(0,len(o)):
  moji+=o[i]
  try:
    moji+=e[i]
  except IndexError:
    pass
print(moji)
Buggy code:
O = input()
E = input()


cont = True
i = 0
s = str()

while cont:
    s += O[i]
    if cont == False:
        break
    s += E[i]
    if i == len(E)-1:
        cont = False
    i += 1
    
print(s)

Fixed code:
O = input()
E = input()


cont = True
i = 0
s = str()

while i < len(O):
    s += O[i]
    if cont == False:
        break
    s += E[i]
    if i == len(E)-1:
        cont = False
    i += 1
    
print(s)
Buggy code:
o = list(input())
e = list(input()) + [""]

for x,y in zip( o, e ) : print( x+y, sep="" )

Fixed code:
o = list(input())
e = list(input()) + [""]

for x,y in zip( o, e ) : print( x+y, end="" )
Buggy code:
o = input()
e = input()
ans = ''
if len(o) == len(e):
    for i in range(len(o)):
        ans += o[i] + e[i]
else:
    for i in range(len(e)):
        ans += o[i] + e[i]
    ans + o[len(o) - 1]
print(ans)

Fixed code:
o=input()
e=input()
ans=str()
if len(o)==len(e):
    for i in range(len(o)):
        ans+=o[i]
        ans+=e[i]
    print(ans)
else:
    for i in range(len(o)-1):
        ans+=o[i]
        ans+=e[i]
    ans+=o[-1]
    print(ans)
Buggy code:
O = input()
#atcoderbeginnercontest

E = input()
#atcoderregularcontest
S = []

if len(O) == len(E):
	for i in range(len(O)):
		S.append(O[i] + E[i])
else:
	for i in range(len(E)):
		S.append(O[i] + E[i])
		S.append(O[-1])

print("".join(S))

Fixed code:
O = input()
#atcoderbeginnercontest

E = input()
#atcoderregularcontest
S = []

if len(O) == len(E):
	for i in range(len(O)):
		S.append(O[i] + E[i])
else:
	for i in range(len(E)):
		S.append(O[i] + E[i])
	S.append(O[-1])
#print(S)
print("".join(S))
Buggy code:
o = input()
e = input()

ans = [a+b for a,b in zip(o,e)]
print("".join(ans))

Fixed code:
o = list(input())
e = list(input())+[""]

ans = [a+b for a,b in zip(o,e)]
print("".join(ans))
Buggy code:
# input
O = input()
E = input()

password = [0 for _ in range(len(O) + len(E))]

for i in range(len(O)):
    password[2 * i] = O[i]

for i in range(len(E)):
    password[2 * i + 1] = E[i]

password_str = ''.join(str_list)
print(password_str)

Fixed code:
# input
O = input()
E = input()

password = [0 for _ in range(len(O) + len(E))]

for i in range(len(O)):
    password[2 * i] = O[i]

for i in range(len(E)):
    password[2 * i + 1] = E[i]

password_str = ''.join(password)
print(password_str)
Buggy code:
print("".join(map("".join,zip(input(),input()))))

Fixed code:
print("".join(map("".join,zip(input(),input()+" "))))
Buggy code:
o = input()
e = input()
n = []
e.append(' ')
for i in range(o):
  n.append(o[i])
  n.append(e[i])
print(''.join(n).strip())

Fixed code:
o = input()
e = input()
n = []
e += ' '
for i in range(len(o)):
  n.append(o[i])
  n.append(e[i])
print(''.join(n).strip())
Buggy code:
o = input()
e = input()
ans = ''
for i in range(len(o)):
    ans += o[i]+e[i]

print(ans)

Fixed code:
o = str(input())
e = str(input())
ans = ""

for i in range(len(o)):
    ans += (o + e)[i::len(o)]
print(ans)
Buggy code:
O = input()
E = input()
N = len(O)+len(E)
p = ""
for i in range(N//2):
    p += O[i] + E[i]
    if N % 2 ==1:
        p += O[i+1]
print(p)

Fixed code:
O = input()
E = input()
N = len(O)+len(E)
p = ""
for i in range(N//2):
    p += O[i] + E[i]
if N % 2 ==1:
    p += O[i+1]
print(p)
Buggy code:
o=str(input())
e=str(input())
ans=''
if len(o)==len(e):
  for i in range(len(o)):
    ans+=o[i]
    ans+=e[i]
else:
  for i in range(len(e)):
    ans+=o[i]
    ans+=e[i]
    ans+=o[len(o)-1]
print(ans)


Fixed code:
o=str(input())
e=str(input())
ans=''
if len(o)==len(e):
  for i in range(len(o)):
    ans+=o[i]
    ans+=e[i]
else:
  for i in range(len(e)):
    ans+=o[i]
    ans+=e[i]
  ans+=o[len(o)-1]
print(ans)
Buggy code:
O, E = [input() for _ in range(2)]
pass_word = []
for i in range(len(E)):
  if len(O) < len(E) and i == len(E) - 1:
    pass_word.append(E[i])
  else:
    pass_word.append(O[i])
    pass_word.append(E[i])

ans = "".join(pass_word)
print(ans)

Fixed code:
O, E = [input() for _ in range(2)]

pass_word = []
for i in range(len(O)):
  if len(O) > len(E) and i == len(O) - 1:
    pass_word.append(O[i])
  else:
    pass_word.append(O[i])
    pass_word.append(E[i])

ans = "".join(pass_word)
print(ans)
Buggy code:
o=input()
e=input()
res=o[0]
for i in range(1,len(o)):
    res+=o[i]+e[i-1]
if len(o)==len(e):res+=e[-1]
print(res)

Fixed code:
o=input()
e=input()
res=o[0]
for i in range(1,len(o)):
    res+=e[i-1]+o[i]
if len(o)==len(e):res+=e[-1]
print(res)
Buggy code:
o = input()
e = input()
ans = ''
for i in range(len(o)):
    ans +=o[i]+e[i]
if len(o) != len(e):
    ans +=e[-1]
print(ans)


Fixed code:
o = input()
e = input()
ans = ''
for i in range(len(e)):
    ans +=o[i]+e[i]
if len(o) != len(e):
    ans +=o[-1]
print(ans)
Buggy code:
o = input()
e = input()
lis = []
for i in range(min(len(o),len(e)):
    lis.append(o[i])
    lis.append(e[i])
if len(o)>len(e):
    lis.append(o[-1])
elif len(o)==len(e):
    lis.append(o[-1])
    lis.append(e[-1])

print(''.join(lis))

Fixed code:
o = input()
e = input()
lis = []
for i in range(min(len(o),len(e))):
    lis.append(o[i])
    lis.append(e[i])
if len(o)>len(e):
    lis.append(o[-1])

print(''.join(lis))
Buggy code:
O=input();E=input()+O;print(*[a+b for a,b in zip(O,E)],sep='')

Fixed code:
O=input()
E=input()+' '
print(*[a+b for a,b in zip(O,E)], sep='')
Buggy code:
o = input()
e = input()+[""]

for x,y in zip(o,e):
  print(x+y,end="")

Fixed code:
o = list(input())
e = list(input())+[""]

for x,y in zip(o,e):
  print(x+y,end="")
Buggy code:
def main():
    o = input()
    e = input()

    pw = [0]*(len(o)+len(e))

    for i in range(len(o)):
        pw[i*2] = o[i*2]

    for i in range(len(e)):
        pw[i*2 + 1] = e[i*2 + 1]

    print("".join(pw))

    # if len(o) == len(e):
    #     pw = [o[i]+e[i] for i in range(len(o))]
    # else:
    #     pw = [o[i]+e[i] for i in range(len(e))]
    #     pw.append(o[-1])
    # 
    # print("".join(pw))
    # 


if __name__ == "__main__":

    main()


Fixed code:
def main():
    o = input()
    e = input()

    pw = [0]*(len(o)+len(e))

    for i in range(len(o)):
        pw[i*2] = o[i]

    for i in range(len(e)):
        pw[i*2 + 1] = e[i]

    print("".join(pw))

    # if len(o) == len(e):
    #     pw = [o[i]+e[i] for i in range(len(o))]
    # else:
    #     pw = [o[i]+e[i] for i in range(len(e))]
    #     pw.append(o[-1])
    # 
    # print("".join(pw))
    # 


if __name__ == "__main__":

    main()
Buggy code:
import collections
import sys
import numpy as np
sys.setrecursionlimit(1000000000)
from heapq import heapify,heappop,heappush,heappushpop
MOD = 10**9+7
import itertools
import math

o = input()
e = input()
ans = ""
for i in range(len(o)):
    ans += o[i]+e[i]
print(ans)

Fixed code:
import collections
import sys
import numpy as np
sys.setrecursionlimit(1000000000)
from heapq import heapify,heappop,heappush,heappushpop
MOD = 10**9+7
import itertools
import math

o = input()
e = input()
ans = ""
for i in range(len(e)):
    ans += o[i] + e[i]
if len(o)>len(e):
    ans += o[-1]
print(ans)
Buggy code:
a=input()
b=input()
n=[]
for i in range(len(a)):
  n.append(a[i])
  if i<=len(b):
    n.append(b[i])
print("".join(n))

Fixed code:
a=input()
b=input()
n=[]
for i in range(len(a)):
  n.append(a[i])
  if i<=len(b)-1:
    n.append(b[i])
print("".join(n))
Buggy code:
S=[input() for i in range(2)]
for i in range(len(S[0])-1):
    print(S[0][i]+S[1][i],end='')
if len(S[0])>len(S[1]):
    print(S[0][-1])

Fixed code:
S=[input() for i in range(2)]
if len(S[0])>len(S[1]):
    L=len(S[0])-1
else:
    L=len(S[0])
for i in range(L):
    print(S[0][i]+S[1][i],end='')
if len(S[0])>len(S[1]):
    print(S[0][-1])
Buggy code:
a = input()
b = input()
f = False
x = []
if len(a)> len(b):
    b.append(0)
    f = True
for i in range(len(a)):
    x.append(a[i]+b[i])
if f:
    x.pop()
print("".join(x))

Fixed code:
a = list(input())
b = list(input())
f = False
x = []
if len(a)> len(b):
    b.append(0)
    f = True
for i in range(len(a)):
    x.append(a[i])
    x.append(b[i])
if f:
    x.pop()
print("".join(x))
Buggy code:
o = list(input())
e = list(input())+[""]

for i,j zip(o,e): print(i+j,end="")

Fixed code:
o = list(input())
e = list(input())+[""]

for i,j in zip(o,e): print(i+j,end="")
Buggy code:
s_vec1 = input()
s_vec2 = input()
def abc_057_2(o,e):
    s_vec3 = []
    for i in range(0,len(o)):
    s_vec3.append(o[i])
    s_vec3.append(e[i])
    if len(o) == len(e):
        pass
    else:
        s_vec3.append(o[i+1])
    return(''.join(s_vec3))    

Fixed code:
s_vec1 = input()
s_vec2 = input()
def abc_057_2(o,e):
    s_vec3 = []
    for i in range(0,len(e)):
        s_vec3.append(o[i])
        s_vec3.append(e[i])
    if len(o) == len(e):
        pass
    else:
        s_vec3.append(o[i+1])
    return(''.join(s_vec3))
print(abc_057_2(s_vec1,s_vec2))
Buggy code:
o = str(input())
e = str(input())
s = []
for i in range(len(e)):
    s.append(o[i])
    s.append(e[i])
if len(o) - len(e) = 1:
    s.append(o[-1])
print(*s, sep = "")


Fixed code:
o = str(input())
e = str(input())
s = []
for i in range(len(e)):
    s.append(o[i])
    s.append(e[i])
if len(o) > len(e):
    s.append(o[-1])
print(*s, sep = "")
Buggy code:
O = input()
E = input()
ans = ''
for o, e in zip(O, E):
    ans += o + e
print(ans if len(o) == len(e) else ans + o[-1])

Fixed code:
O = input()
E = input()
ans = ''
for o, e in zip(O, E):
    ans += o + e
print(ans if len(O) == len(E) else ans + O[-1])
Buggy code:
O = input()
E = input()
S = ''
for i in range(len(E)):
    S += O[i] + E[i]
print(S if len(O) == len(E) else S+0[-1])

Fixed code:
O = input()
E = input()
S = ''
for i in range(len(E)):
    S += O[i] + E[i]
print(S if len(O) == len(E) else S+O[-1])
Buggy code:
o = input()
e = input()
ret = ""
for i in range(len(o) + len(e)):
    if i % 2 == 0:
        ret += o[i/2]
    else:
        ret += e[i/2]
print(ret)


Fixed code:
o = input()
e = input()
ret = ""
for i in range(len(o) + len(e)):
    if i % 2 == 0:
        ret += o[i//2]
    else:
        ret += e[i//2]
print(ret)
Buggy code:
O = input()
E = input()
print(*[O+E for O,E in zip(O,E)], sep='')

Fixed code:
O = list(input())
E = list(input()) + ['']
print(*[O+E for O,E in zip(O,E)], sep='')
Buggy code:
o = input()
e = input()
x = []
if len(o) == len(e):
  for i in range(len(o)):
    x.append(o[i]+e[1])
else:
  for i in range(len(e)):
    x.append(o[i]+e[i])
  x.append(a[-1])
print(*x,sep="")
    

Fixed code:
o = str(input())
e = str(input())
x = []
if len(o) == len(e):
  for i in range(len(o)):
    x.append(o[i]+e[i])
else:
  for i in range(len(e)):
    x.append(o[i]+e[i])
  x.append(o[-1])
print(*x,sep="")
Buggy code:
o = input()
e = input()
ans = ""
m = min(len(o),len(e))
for i in range(m):
    ans += o[i]
    ans += e[i]
if o < e:
    ans += e[-1]
elif e < o:
    ans += o[-1]
print(ans)

Fixed code:
o = input()
e = input()
ans = ""
m = min(len(o),len(e))
for i in range(m):
    ans += o[i]
    ans += e[i]
if len(o) < len(e):
    ans += e[-1]
elif len(e) < len(o):
    ans += o[-1]
print(ans)
Buggy code:
O = input()
E = input()

password = O[0] + E[0]

if len(O)-len(E)==1:
    for i in range(1, len(O)-1):
        password = password + O[i] + E[i]
    password = password + O[i]
else:
    for i in range(1, len(O)):
        password = password + O[i] + E[i]

print(password)


Fixed code:
O = input()
E = input()

password = O[0] + E[0]

if len(O)-len(E)==1:
    for i in range(1, len(O)-1):
        password = password + O[i] + E[i]
    password = password + O[-1]
else:
    for i in range(1, len(O)):
        password = password + O[i] + E[i]

print(password)
Buggy code:
A = str(input())
B = str(input())

A = list(A)
B = list(B)

AL = len(A)
BL = len(B)

b = []
for i in range(BL):
  b.append(A[i] + B[i])
  if AL -BL == 1:
    b.append(A[-1])

print(",".join(b).replace(",", ""))


Fixed code:
A = str(input())
B = str(input())

A = list(A)
B = list(B)

AL = len(A)
BL = len(B)

b = []
for i in range(BL):
  b.append(A[i] + B[i])
if AL -BL == 1:
    # b.append(A[-1])
  b.append(A[-1])
print(",".join(b).replace(",", ""))
Buggy code:
from itertools import groupby, accumulate, product, permutations, combinations
from collections import Counter
def solve():
    N = int(input())
    dics = [0]*N
    S = [input() for _ in range(N)]
    dic = Counter(S[0])
    for i in range(1,N):
        for k,v in Counter(S[i]).items():
            if k in dic:
                dic[k] = min(dic[k],v)
    ans = ''
    for k,v in sorted(dic.items()):
        ans += k*v
    return ans
print(solve())

Fixed code:
from itertools import groupby, accumulate, product, permutations, combinations
from collections import Counter
def solve():
    N = int(input())
    dics = [0]*N
    S = [input() for _ in range(N)]
    dic = Counter(S[0])
    for i in range(1,N):
        new_dic = Counter(S[i])
        for k in dic.keys():
            if k in new_dic:
                dic[k] = min(dic[k],new_dic[k])
            else:
                dic[k] = 0
    ans = ''
    for k,v in sorted(dic.items()):
        ans += k*v
    return ans
print(solve())
Buggy code:
n = int(input())
words = []
for i in range(n):
  words.append(input())
for i in words:
  i = sorted(i)
words = sorted(words)
word = ""
for i in words[0]:
  if i not in word:
    word+=i
result = ""
for i in word:
  minim = 51
  for j in words:
    if j.count(i)<minim:
      minim = j.count(i)
  result+=i*minim
result = sorted(result)
print(result)

Fixed code:
n = int(input())
words = []
for i in range(n):
  words.append(input())
for i in words:
  i = "".join(sorted(i))
words = sorted(words)
word = ""
for i in words[0]:
  if i not in word:
    word+=i
result = ""
for i in word:
  minim = 51
  for j in words:
    if j.count(i)<minim:
      minim = j.count(i)
  result+=i*minim
result = "".join(sorted(result))
print(result)
Buggy code:
from collections import Counter

n = int(input())
S = [input() for _ in range(n)]

res = Counter(S[0])

for s in S[1:]:
    c = Counter(s)
    res = res & c

ans = ""
for key in res.keys():
    ans += key * res[key]

print(ans)


Fixed code:
from collections import Counter

n = int(input())
S = [input() for _ in range(n)]

res = Counter(S[0])

for s in S[1:]:
    c = Counter(s)
    res = res & c

ans = ""
for key in res.keys():
    ans += key * res[key]

print("".join(sorted(ans)))
Buggy code:
import collections

N = int(input())

S = collections.Counter(list(input()))
for i in range(N-1):
    c = collections.Counter(list(input()))
    S &= c

ans = []
for i in S.items():
    ans += i[0]*i[1]
A.sort()
print(*ans, sep="")

Fixed code:
import collections

N = int(input())

S = collections.Counter(list(input()))
for i in range(N-1):
    c = collections.Counter(list(input()))
    S &= c

ans = []
for i in S.items():
    ans += i[0]*i[1]
ans.sort()
print(*ans, sep="")
Buggy code:
from collections import Counter
n = int(input())
s = []
s0 = list(input())
sc = Counter(s0)
for i in range(1,n):
    a = list(input())
    ac = Counter(a)
    for i,v in ac.items():
        if i not in sc:
            continue
        elif sc[i] < v:
            ac[i] = sc[i]
    sc = ac
sc2 = sorted(sc.items())
for i,v in sc2:
    for j in range(v):
        print(i,end='')

Fixed code:
from collections import Counter
n = int(input())
s = []
s0 = list(input())
sc = Counter(s0)
for i in range(1,n):
    a = list(input())
    ac = Counter(a)
    for i,v in ac.items():
        if i not in sc:
            continue
        elif sc[i] > v:
            sc[i] = ac[i]
    for i,v in sc.items():
        if i not in ac:
            sc[i] = 0
sc2 = sorted(sc.items())
for i,v in sc2:
    for j in range(v):
        print(i,end='')
Buggy code:
import string
from collections import defaultdict

n = int(input())
s_list = [input() for i in range(n)]

alphabet = string.ascii_lowercase
count_dict = defaultdict(int)

for c in alphabet:
  min_count = float("inf")
  for s in s_list:
    count = s.count(c)
    min_count = min(min_count, count)
    count_dict[c] = min_count

final_string = ''

for k, v in count_dict.items():
  if v == 0:
    continue
  else:
    final_string += k * v

final_string = ''.join(list(final_string).sort())

print(final_string)



Fixed code:
import string
from collections import defaultdict

n = int(input())
s_list = [input() for i in range(n)]

alphabet = string.ascii_lowercase
count_dict = defaultdict(int)

for c in alphabet:
  min_count = float("inf")
  for s in s_list:
    count = s.count(c)
    min_count = min(min_count, count)
    count_dict[c] = min_count

final_string = ''

for k, v in count_dict.items():
  if v == 0:
    continue
  else:
    final_string += k * v

final_string_list = list(final_string)
final_string_list.sort()
    
final_string = ''.join(final_string_list)

print(final_string)
Buggy code:
# -*- coding: utf-8 -*-
from string import ascii_lowercase


def list_n():
    return [int(e) for e in input().split()]


def list_s():
    return [s for e in input().split()]


def main(n, ss):
    answer = ''
    for c in ascii_lowercase:
        answer += c * min([s.count(c) for s in ss])
    return answer


if __name__ == '__main__':
    n = int(input())
    ss = list_s()
    print(main(n, ss))


Fixed code:
# -*- coding: utf-8 -*-
from string import ascii_lowercase


def list_n():
    return [int(e) for e in input().split()]


def list_s():
    return [s for e in input().split()]


def main(n, ss):
    answer = ''
    for c in ascii_lowercase:
        answer += c * min([s.count(c) for s in ss])
    return answer


if __name__ == '__main__':
    n = int(input())
    ss = [input() for _ in range(n)]
    print(main(n, ss))