qyliang/CodeNanoFix huggingface dataset:
Buggy code:
n = int(input())
a = 0
Ans_list = []
alpha = ["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"]
qq = n % 26
if qq == 0:
    qq = 26
Ans_list.insert(0,qq)
b = n - qq
for i in range(10):
    po = b // 26
    po2 = po % 26
    if po2 == 0:
        po2 = 26
    Ans_list.insert(0,po2)
    b = po - po2
    if b == 0:
        break
Ans = ""
for i in range(len(Ans_list)):
    Ans = Ans +  alpha[Ans_list[i]-1]
print(Ans)

Fixed code:
n = int(input())
a = 0
Ans_list = []
alpha = ["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"]
qq = n % 26
if qq == 0:
    qq = 26
Ans_list.insert(0,qq)
b = n - qq
for i in range(10000):
    po = b // 26
    po2 = po % 26
    if po2 == 0:
        po2 = 26
    Ans_list.insert(0,po2)
    b = po - po2
    if b <= 0:
        break
Ans = ""
if n <= 26:
    del Ans_list[0]
for i in range(len(Ans_list)):
    Ans = Ans +  alpha[Ans_list[i]-1]
print(Ans)
Buggy code:
N = int(input())
ans = ''

while True:
    if N <= 26**i:
        N -= 1
        for j i in range(N):
            ans += chr(ord('a') + N%26)
            N //= 26
        break
    else:
        N -= 26 ** i
print(ans[::-1])

Fixed code:
N = int(input())
ans = ''

i = 1
while True:
    if N <= 26**i:
        N -= 1
        for j in range(i):
            ans += chr(ord('a') + N%26)
            N //= 26
        break
    else:
        N -= 26 ** i
    i+=1
print(ans[::-1])
Buggy code:
n = int(input())
eigo = 'abcdefghijklmnopqrstuvwxyz'

keta = 1
while n > 26**keta:
    n -= 26**keta
    keta += 1

ans =''
for i in range(keta):
    a =n // 26**(keta-1-i)
    ans += eigo[a]
    n = n % (26**(keta-1-i))

print(ans)

Fixed code:
n = int(input())
eigo = 'abcdefghijklmnopqrstuvwxyz'

keta = 1
while n > 26**keta:
    n -= 26**keta
    keta += 1

ans =''
n = n-1
for i in range(keta):
    a =n // 26**(keta-1-i)
    ans += eigo[a]
    n = n % (26**(keta-1-i))
print(ans)
Buggy code:
N = int(input())
keta = 1
cumsum = 0
oldcumsum = 0
while True:
  cumsum += 26 ** keta
  if cumsum > N:
    break
  else:
    oldcumsum = cumsum
  keta += 1
print(keta)

N -= oldcumsum
N -= 1

name = ''
for k in range(1,keta+1):
  ch_n = N // (26 ** (keta - k))
  ch = chr(ord('a') + ch_n)
  name += ch
  N -= ch_n * (26 ** (keta - k))
print(name)

Fixed code:
N = int(input()) - 1
keta = 1
cumsum = 0
oldcumsum = 0
while True:
  cumsum += 26 ** keta
  if cumsum > N:
    break
  else:
    oldcumsum = cumsum
  keta += 1

N -= oldcumsum
#N -= 1
#print(keta)

name = ''
for k in range(1,keta+1):
  ch_n = N // (26 ** (keta - k))
  ch = chr(ord('a') + ch_n)
  name += ch
  N -= ch_n * (26 ** (keta - k))
print(name)
Buggy code:
N = input()

s = "abcdefghijklmnopqrstuvwxyz"
ans = ""
n, m = 0, 0

for i in range(1, 1000):
    m += 26 ** i
    if N <= m:
        n = i
        break

for i in range(n):
    a, b = divmod(N, 26)
    N = a
    if b == 0:
        ans += s[25]
        N -= 1
    else:
        ans += s[b-1]

ans1 = ''.join(list(reversed(ans)))
print(ans1)

Fixed code:
N = int(input())

s = "abcdefghijklmnopqrstuvwxyz"
ans = ""
n, m = 0, 0

for i in range(1, 1000):
    m += 26 ** i
    if N <= m:
        n = i
        break

for i in range(n):
    a, b = divmod(N, 26)
    N = a
    if b == 0:
        ans += s[25]
        N -= 1
    else:
        ans += s[b-1]

ans1 = ''.join(list(reversed(ans)))
print(ans1)
Buggy code:
n = int(input())
ans = ""
while(n>0):
    r = n%26
    if r==0:
        r = 26
    ans = s[r] + ans
    n -= r
    n //=26

Fixed code:
s = "zabcdefghijklmnopqrstuvwxyz"
n = int(input())
ans = ""
while(n>0):
    r = n%26
    if r==0:
        r = 26
    ans = s[r] + ans
    n -= r
    n //=26
print(ans)
Buggy code:
n = int(input())

su=[26**i for i in range(1,10)]
from itertools import accumulate
wa = list(accumulate(su)) 
import bisect
c = 0
if n>27:
    c=bisect.bisect_left(wa, n)
    n=n-wa[c-1]-1

k=26
bi=[]
for i in range(c+1):
    
      bi.append(n % k)
      n = (n-n%k)//k

al=[chr(ord('a') + i) for i in range(26)]

li = [al[i] for i in bi]
li.reverse()

mojiretu = ''.join(li)

print(mojiretu)

Fixed code:
n = int(input())

su=[26**i for i in range(1,20)]
from itertools import accumulate
wa = list(accumulate(su)) 
import bisect
c = 0
n = n-1
if n>26:
    c=bisect.bisect_left(wa, n)
    n=n-wa[c-1]
m = n
k=26
bi=[]
for i in range(c+1):
    
      bi.append(n % k)
      n = (n-n%k)//k
      
al=[chr(ord('a') + i) for i in range(26)]

li = [al[i] for i in bi]
li.reverse()
if m in su:
  li.append('a')

mojiretu = ''.join(li)

print(mojiretu)
Buggy code:
N = int(input()) 

ans='' 

while N>0:
	N -= 1
	ans += chr(ord('a') + N % 26) 
    N //= 26
    
print(ans[::-1])

Fixed code:
N = int(input()) 

ans='' 

while N>0:
	N -= 1
	ans += chr(ord('a') + N % 26) 
	N = N//26
    
print(ans[::-1])
Buggy code:
N=int(input())
def kore(num):
    if num<=26:
        return chr(64+num)
    elif num%26==0:
        return num2alpha(num//26-1)+chr(90)
    else:
        return num2alpha(num//26)+chr(64+num%26)
s=kore(N)
s.lower()
print(s)

Fixed code:
N=int(input())
def kore(num):
    if num<=26:
        return chr(64+num)
    elif num%26==0:
        return kore(num//26-1)+chr(90)
    else:
        return kore(num//26)+chr(64+num%26)
s=kore(N)
s=s.lower()
print(s)
Buggy code:
n = int(input())

name = []

while n > 0:
    n -= 1
    name.append(alp[n % 26])
    n //= 26

name.reverse()

print(*name,sep='')

Fixed code:
n = int(input())

alp = 'abcdefghijklmnopqrstuvwxyz'

name = []

while n > 0:
    n -= 1
    name.append(alp[n % 26])
    n //= 26

name.reverse()

print(*name,sep='')
Buggy code:
n = input()
chars = "Xabcdefghijklmnopqrstuvwxyz"
n_rem = n
ans = ""

while True:
  x = n_rem % 26
  if x == 0:
    x = 26
  ans += chars[x]
  n_rem -= 26
  if n_rem == 0:
    break
  n_rem //= 26
print(ans[::-1])

Fixed code:
n = int(input())
chars = "Xabcdefghijklmnopqrstuvwxyz"
n_rem = n
ans = ""
 
while True:
  x = n_rem % 26
  if x == 0:
      x = 26
  ans += chars[x]
  n_rem -= x
  if n_rem == 0:
    break
  n_rem //= 26
  
print(ans[::-1])
Buggy code:
n = int(input())

dicts = {}
dicts[1] = "a"
dicts[2] = "b"
dicts[3] = "c"
dicts[4] = "d"
dicts[5] = "e"
dicts[6] = "f"
dicts[7] = "g"
dicts[8] = "h"
dicts[9] = "i"
dicts[10] = "j"
dicts[11] = "k"
dicts[12] = "l"
dicts[13] = "m"
dicts[14] = "n"
dicts[15] = "o"
dicts[16] = "p"
dicts[17] = "q"
dicts[18] = "r"
dicts[19] = "s"
dicts[20] = "t"
dicts[21] = "u"
dicts[22] = "v"
dicts[23] = "w"
dicts[24] = "x"
dicts[25] = "y"
dicts[0] = "z"
arr = []
while n > 0:
    add = n % 26
    arr.append(add)
    n = n // 26 
    if add == 0:
        n -= 1

revarr = arr[::-1]
ans = ""
# print(arr)
print(revarr)
for i in revarr:
    ans += dicts[i]
print(ans)



Fixed code:
n = int(input())

dicts = {}
dicts[1] = "a"
dicts[2] = "b"
dicts[3] = "c"
dicts[4] = "d"
dicts[5] = "e"
dicts[6] = "f"
dicts[7] = "g"
dicts[8] = "h"
dicts[9] = "i"
dicts[10] = "j"
dicts[11] = "k"
dicts[12] = "l"
dicts[13] = "m"
dicts[14] = "n"
dicts[15] = "o"
dicts[16] = "p"
dicts[17] = "q"
dicts[18] = "r"
dicts[19] = "s"
dicts[20] = "t"
dicts[21] = "u"
dicts[22] = "v"
dicts[23] = "w"
dicts[24] = "x"
dicts[25] = "y"
dicts[0] = "z"
arr = []
while n > 0:
    add = n % 26
    arr.append(add)
    n = n // 26 
    if add == 0:
        n -= 1

revarr = arr[::-1]
ans = ""
# print(arr)
#print(revarr)
for i in revarr:
    ans += dicts[i]
print(ans)
Buggy code:
import math

n = int(input())

'''
(26**(m+1) - 26) / 25 <= n
26**(m+1) <= 25n + 26
m <= log(25n+26, 26) - 1
'''

m = int(math.log(25*n+26, 26) - 1)

d = n - (26**(m+1) - 26) // 25

alphabetTable = ['z']
alphabetTable.extend(chr(i) for i in range(97,123))

print(alphabetTable)

if d == 0:
  print('z' * m)

else:
  dd = []
  cnt = 0
  for i in range(1, m+2):
    cnt += 1
    amari = d % 26
    d = d//26 + 1
    if amari == 0:
      d -= 1
    dd.append(amari)
    if d <= 0:
      break
  
  print(cnt)


  alpha = [alphabetTable[dd[i]] for i in range(cnt)]
  alpha.extend(['a' * (m+1-cnt)])
  alpha.reverse()
  print(''.join(alpha))

Fixed code:
import math

n = int(input())

'''
(26**(m+1) - 26) / 25 <= n
26**(m+1) <= 25n + 26
m <= log(25n+26, 26) - 1
'''

m = int(math.log(25*n+26, 26) - 1)

d = n - (26**(m+1) - 26) // 25

alphabetTable = ['z']
alphabetTable.extend(chr(i) for i in range(97,123))


if d == 0:
  print('z' * m)

else:
  dd = []
  cnt = 0
  for i in range(1, m+2):
    cnt += 1
    amari = d % 26
    d = d//26 + 1
    if amari == 0:
      d -= 1
    dd.append(amari)
    if d <= 0:
      break
  


  alpha = [alphabetTable[dd[i]] for i in range(cnt)]
  alpha.extend(['a' * (m+1-cnt)])
  alpha.reverse()
  print(''.join(alpha))
Buggy code:
n = int(input())
n -= 1
for i in range(1, 15):
    if n >= 26**i :
        n -= 26**i
        continue 
    ans = ""
    for j in range(i):
        d = n % 26
        ans += chr(ord("a")+d)
        n //= 26
    ans = ans[::-1]
print(ans)




Fixed code:
n = int(input())
n -= 1
for i in range(1, 15):
    if n >= 26**i :
        n -= 26**i
        continue 
    ans = ""
    for j in range(i):
        d = n % 26
        ans += chr(ord("a")+d)
        n //= 26
    ans = ans[::-1]
    break
print(ans)
Buggy code:
def main():
        n = int(input())
        ans = []
        while n > 0:
            n -= 1
            ans.append(chr(97 + n % 26))
            n //= 26
        print(''.join(ans))

if __name__ == '__main__':
    main()


Fixed code:
def main():
        n = int(input())
        ans = []
        while n > 0:
            n -= 1
            ans.append(chr(97 + n % 26))
            n //= 26
        print(''.join(ans[::-1]))

if __name__ == '__main__':
    main()
Buggy code:
n = int(input())
ans = ''
while n:
  n -= 1
  alphabet = chr(ord('a') + n % 26)
  ans += alphabet
  n //= 26
print(ans[::1])

Fixed code:
n = int(input())
ans = ''
while n:
  n -= 1
  alphabet = chr(ord('a') + n % 26)
  ans += alphabet
  n //= 26
print(ans[::-1])
Buggy code:
from string import ascii_lowercase
N = int(input())
s = list()

while N > 0: 
	m = N%26 - 1
	s.append(ascii_lowercase[m])
	N = int(N/26)
	if N > 0: N -= 1
	
s.reverse()
s = ''.join(s)
print(s)

Fixed code:
from string import ascii_lowercase
N = int(input())
s = list()

while N > 0: 
	N -= 1
	m = N%26 
	s.append(ascii_lowercase[m])

	N = int(N/26)

	
s.reverse()
s = ''.join(s)
print(s)
Buggy code:
N = int(input())
ans=''

for i in range(1, 99):
	if N <= 26 ** i:
      N -= 1
      for j in range(i):
        ans += chr(ord('a') + N % 26)
        N //= 26
      break
    else:
      N -= 26 ** i

print(ans[::-1]) # reversed

Fixed code:
N = int(input())
ans=''

for i in range(1, 99):
  if N <= 26 ** i:
    N -= 1
    for j in range(i):
      ans += chr(ord('a') + N % 26)
      N //= 26
    break
  else:
    N -= 26 ** i

print(ans[::-1]) # reversed
Buggy code:
import string
N = int(input())
ANS =[]
while N>1:
    M=int(N%26)
    N=N-M
    ANS.insert(0,string.ascii_lowercase[M-1])
    N=N-M
    N=N/26
    # print(ANS)
map = map(str,ANS)
print(''.join(map))

Fixed code:
import string
N = int(input())
ANS =[]
while N>0:
    M=int(N%26)
    if M==0:
        M=26
    ANS.insert(0,string.ascii_lowercase[M-1])
    N=N-M
    N=N/26
    # print(ANS)
map = map(str,ANS)
print(''.join(map))
Buggy code:
import string


N = int(input())
S = string.ascii_lowercase

ans = ''
if N <= 26:
    ans = S[N - 1]

while True:
    N, b = divmod(N, 26)
    ans = S[b - 1] + ans
    if b == 0:
        N -= 1

    if N <= 26:
        ans = S[N - 1] + ans
        break

print(ans)

Fixed code:
import string


N = int(input())
S = string.ascii_lowercase

ans = ''
if N <= 26:
    ans = S[N - 1]

else:
    while True:
        N, b = divmod(N, 26)
        ans = S[b - 1] + ans
        if b == 0:
            N -= 1

        if N <= 26:
            ans = S[N - 1] + ans
            break

print(ans)
Buggy code:
alp=['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']
 
n=int(input())
ans=""
while n>0:
 a=n%26
 ans+=alp[a] 
 n=int(n//26)
 
print(ans[::-1])

Fixed code:
alp=['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']
n=int(input())
ans=""
while n>0:
 n-=1
 a=n%26
 ans+=alp[a] 
 n=int(n//26)
 
print(ans[::-1])
Buggy code:
n = int(input())
ans = []
while n >= 1:
    if n == 27:
      ans.append(0)
      break
    else:
      a = n % 26
      ans.append(a)
      n //= 26
ans = ans[::-1]
z = []
for i in ans:
  if i == 1:
    z.append('a')
  elif i == 2:
    z.append('b')
  elif i == 3:
    z.append('c')
  elif i == 4:
    z.append('d')
  elif i == 5:
    z.append('e')
  elif i == 6:
    z.append('f')
  elif i == 7:
    z.append('g')
  elif i == 8:
    z.append('h')
  elif i == 9:
    z.append('i')
  elif i == 10:
    z.append('j')
  elif i == 11:
    z.append('k')
  elif i == 12:
    z.append('l')
  elif i == 13:
    z.append('m')
  elif i == 14:
    z.append('n')
  elif i == 15:
    z.append('o')
  elif i == 16:
    z.append('p')
  elif i == 17:
    z.append('q')
  elif i == 18:
    z.append('r')
  elif i == 19:
    z.append('s')
  elif i == 20:
    z.append('t')
  elif i == 21:
    z.append('u')
  elif i == 22:
    z.append('v')
  elif i == 23:
    z.append('w')
  elif i == 24:
    z.append('x')
  elif i == 25:
    z.append('y')
  elif i == 0:
    z.append('z')
    
print(''.join(z))
  
    

Fixed code:
n = int(input())
ans = []
while n >= 1:
    a = n % 26
    ans.append(a)
    n = (n-1)//26
ans = ans[::-1]
z = []
for i in ans:
  if i == 1:
    z.append('a')
  elif i == 2:
    z.append('b')
  elif i == 3:
    z.append('c')
  elif i == 4:
    z.append('d')
  elif i == 5:
    z.append('e')
  elif i == 6:
    z.append('f')
  elif i == 7:
    z.append('g')
  elif i == 8:
    z.append('h')
  elif i == 9:
    z.append('i')
  elif i == 10:
    z.append('j')
  elif i == 11:
    z.append('k')
  elif i == 12:
    z.append('l')
  elif i == 13:
    z.append('m')
  elif i == 14:
    z.append('n')
  elif i == 15:
    z.append('o')
  elif i == 16:
    z.append('p')
  elif i == 17:
    z.append('q')
  elif i == 18:
    z.append('r')
  elif i == 19:
    z.append('s')
  elif i == 20:
    z.append('t')
  elif i == 21:
    z.append('u')
  elif i == 22:
    z.append('v')
  elif i == 23:
    z.append('w')
  elif i == 24:
    z.append('x')
  elif i == 25:
    z.append('y')
  elif i == 0:
    z.append('z')
    
print(''.join(z))
Buggy code:
n = int(input())
arfa = ['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']
str = ''
while n > 26:
  amari = n % 26
  n = n // 26 -1
  str += arfa[amari-1]
str += arfa[n-1]
print(str[::-1])


Fixed code:
n = int(input())
arfa = ['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']
str = ''
while n > 26:
  amari = n % 26
  n = n // 26 
  if amari == 0:
    n -= 1
  str += arfa[amari-1]
str += arfa[n-1]
print(str[::-1])
Buggy code:
import sys

def main(n):
    c = "abcdefghijklmnopqrstuvwxyz"
    m = {}
    for i in range(0, 26):
        m[i+1] = c[i]

    s = ""
    while n > 0:
        s = m[(n%26)] + s
        n /= 26
    return s

n = int(sys.stdin.readline().strip())
print(main(n))


Fixed code:
import sys

def main(n):
    c = "abcdefghijklmnopqrstuvwxyz"
    m = {}
    for i in range(0, 26):
        m[i+1] = c[i]

    s = ""
    while n > 0:
        if n%26 == 0:
            t = 26
            n //= 26
            n -= 1
        else:
            t = n%26
            n //= 26
        s = m[t] + s
    return s

n = int(sys.stdin.readline().strip())
print(main(n))
Buggy code:
def main():
    n = int(input())
    n -= 1
    res = ''
    while n:
        n, m = divmod(n, 26)
        res += chr(97 + m)
        n -= 1

    print(res[::-1])


if __name__ == '__main__':
    main()


Fixed code:
def main():
    n = int(input())
    n -= 1
    res = ''
    while n >= 0:
        n, m = divmod(n, 26)
        res += chr(97 + m)
        n -= 1

    print(res[::-1])


if __name__ == '__main__':
    main()
Buggy code:
import string


def main():
  alpha = string.ascii_lowercase

  def to_n(X, n, list_=[]):
    X_dumy = X
    while X_dumy > 0:
      list_.insert(0, X_dumy % n)
      X_dumy = int(X_dumy/n)
    return list_

  N = int(input())
  res = N
  counter = 0
  while res > 0:
    counter += 1
    res -= 26**counter

  res += 26**counter
  res -= 1
  idx = to_n(res, 26)
  if len(idx) < counter:
    idx.insert(0, 0)
  # print(res)
  # print(idx)
  print('{:<}'.format(''.join(list(map(lambda i: alpha[i], idx)))))

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

Fixed code:
import string


def main():
  alpha = string.ascii_lowercase

  def to_n(X, n, list_=[]):
    X_dumy = X
    while X_dumy > 0:
      list_.insert(0, X_dumy % n)
      X_dumy = int(X_dumy/n)
    return list_

  N = int(input())
  res = N
  counter = 0
  while res > 0:
    counter += 1
    res -= 26**counter

  res += 26**counter
  res -= 1
  idx = to_n(res, 26)
  # print(len(idx), counter)
  while len(idx) < counter:
    idx.insert(0, 0)
  # print(res)
  # print(idx)
  print('{:<}'.format(''.join(list(map(lambda i: alpha[i], idx)))))

if(__name__ == '__main__'):
  main()
Buggy code:
list = [0,'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']
num_list =[0]
for i in range(1,15):
    num_list.append(26**i+num_list[i-1])

n = int(input())
i = 0
while True:
    if num_list[i] >= n:
        break
    else:
        i +=1


word = []
for j in range(i,0,-1):
    x = n//26**(j-1)
    elif x==27:
        word.append(26)
        n = n -26**(j-1)*(n//26**(j-1))+26**(j-1)
    else:
        word.append(x)
        n = n -26**(j-1)*(n//26**(j-1))
while 0 in word:
    p = word.index(0)
    word[p-1] = word[p-1]-1
    word[p] = 26
h =''
for k in range(len(word)):
    h+=str(list[word[k]])
print(h)

Fixed code:
list = [0,'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']
num_list =[0]
for i in range(1,15):
    num_list.append(26**i+num_list[i-1])

n = int(input())
i = 0
while True:
    if num_list[i] >= n:
        break
    else:
        i +=1


word = []
for j in range(i,0,-1):
    x = n//26**(j-1)
    if x==27:
        word.append(26)
        n = n -26**(j-1)*(n//26**(j-1))+26**(j-1)
    else:
        word.append(x)
        n = n -26**(j-1)*(n//26**(j-1))
while True:
    if 0 in word:
        p = word.index(0)
        word[p-1] = word[p-1]-1
        word[p] = 26
    else:
        break
h =''
for k in range(len(word)):
    h+=str(list[word[k]])
print(h)
Buggy code:
n = int(input())
alphabet = 'abcdefghijklmnopqrstuvwxyz'

n -= 1
ans = ''
while n >= 0:
    ans += alphabet[n % 26]
    n //= 26
    n -= 1

print(ans)


Fixed code:
n = int(input())
alphabet = 'abcdefghijklmnopqrstuvwxyz'

n -= 1
ans = ''
while n >= 0:
    ans = alphabet[n % 26] + ans
    n //= 26
    n -= 1

print(ans)
Buggy code:
N = int(input())
A = [
    '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',
]
res = ''
while N > 0:
    a = N % 26
    N = N // 26
    a -= 1
    res += A[a]
print(res)

Fixed code:
N = int(input())
A = [
    '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',
]
res = []
while N > 0:
    a = (N - 1) % 26
    N = (N - 1) // 26
    res.append(A[a])
res.reverse()
print(''.join(res))
Buggy code:
n = input()

data = ["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"]

q, mod = divmod(n-1, 26)
print(q, mod)
answer = data[mod]

while q >= 1:
    q, mod = divmod(q-1, 26)
    print(q, mod)
    answer = data[mod] + answer

print(answer)



Fixed code:
n = int(input())

data = ["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"]

q, mod = divmod(n-1, 26)
answer = data[mod]

while q >= 1:
    q, mod = divmod(q-1, 26)
    answer = data[mod] + answer

print(answer)
Buggy code:
n=int(input())

s = ''
for i in range(11):
  if N != 0:
    n -= 1
    s += chr(ord('a') + N % 26)
    n //= 26
print(s[::-1])

Fixed code:
n=int(input())

s = ''
for i in range(11):
  if n != 0:
    n -= 1
    s += chr(ord('a') + n % 26)
    n //= 26
print(s[::-1])
Buggy code:
n = int(input())
ans = ""

while n > 0:
    n -= 1
    ans += chr(ord('a') + n % 26)
    n //= 26
    print(n)

print(ans[::-1])

Fixed code:
n = int(input())
ans = ""

while n > 0:
    n -= 1
    ans += chr(ord('a') + n % 26)
    n //= 26

print(ans[::-1])
Buggy code:
N = int(input())
alp_list = ['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']
ans = ''
 
for i in range(1,99):
  if N <= 26 ** i:
    N -= 1
    for j in range(i):
      ans += alp_list[N % 26]
      N  = N // 26
    break
  else:
    N -= 26 ** i
print(ans) 

Fixed code:
N = int(input())
alp_list = ['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']
ans = []
 
for i in range(1,12):
  if N <= 26 ** i:
    N -= 1
    for j in range(i):
      ans += alp_list[N % 26]
      N  = N // 26
    break
  else:
    N -= 26 ** i
ans.reverse()
print("".join(ans))
Buggy code:
no = "abcdefghijklmnopqrstuvwxyz"

def main():
    N = int(input())
    ans = ""
    while N > 0:
        N -= 1
        ans += no[N % 26]
        N //= 26
    return ans

if __name__ == '__main__':
    print(main())

Fixed code:
no = "abcdefghijklmnopqrstuvwxyz"

def main():
    N = int(input())
    ans = ""
    while N > 0:
        N -= 1
        ans += no[N % 26]
        N //= 26
    return ans[::-1]

if __name__ == '__main__':
    print(main())
Buggy code:
n = int(input())

modl = []

while n > 26:
    n, mod = divmod(n,26)
    if mod == 0:
        mod = 26
    modl.append(mod)

print( *[chr(i+96) for i in modl],chr(n+96) ,sep="")

Fixed code:
n = int(input())

modl = []

while n > 26:
    n, mod = divmod(n,26)
    if mod == 0:
        mod = 26
        n = n-1
    modl.append(mod)

modl.reverse()

print( chr(n+96),*[chr(i+96) for i in modl] ,sep="")
Buggy code:
n = int(input())
ans = ''
while n > 0:
    ans += chr(ord('a') + n % 26)
    n //= 26
print(ans[::-1])


Fixed code:
n = int(input())
ans = ''
while n > 0:
    n -= 1
    ans += chr(ord('a') + n % 26)
    n //= 26
print(ans[::-1])
Buggy code:
def xxx(n):
    ans = ""
    i = 1

    while True:
        if n <= 26 ** i:
            n -= 1
            for j in range(i):
                ans = char(ord("a") + n%26) + ans
                n //= 26
            return ans
        else:
            n -= 26 ** i
            i += 1


N = int(input())
print(xxx(N))

Fixed code:
def xxx(n):
    ans = ""
    i = 1

    while True:
        if n <= 26 ** i:
            n -= 1
            for j in range(i):
                ans = chr(ord("a") + n%26) + ans
                n //= 26
            return ans
        else:
            n -= 26 ** i
            i += 1


N = int(input())
print(xxx(N))
Buggy code:
n=int(input())
ans=[]
data=["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"]
while(n>0):
    n-=1
    ans.append(n%26)
    n=n//26
print(ans)
for i in range(len(ans)-1,-1,-1):
    print(data[ans[i]],end="")


Fixed code:
n=int(input())
ans=[]
data=["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"]
while(n>0):
    n-=1
    ans.append(n%26)
    n=n//26
for i in range(len(ans)-1,-1,-1):
    print(data[ans[i]],end="")