qyliang/CodeNanoFix huggingface dataset:
Buggy code:
N = int(input())
D = ['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']
a = 26
b = 1
while True:
    if N // (a + 1) == 0:
        break
    b += 1
    a += 26 ** b
A = [0] * b
for i in range(b):
    N -= 26 ** i
for i in range(b - 1, -1, -1):
    A[i] = N // (26 ** i)
    N -= A[i] * (26 ** i)
A = A[::-1]
print(A)
for a in A:
    print(D[a], end='')
print('')

Fixed code:
N = int(input())
D = ['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']
a = 26
b = 1
while True:
    if N // (a + 1) == 0:
        break
    b += 1
    a += 26 ** b
A = [0] * b
for i in range(b):
    N -= 26 ** i
for i in range(b - 1, -1, -1):
    A[i] = N // (26 ** i)
    N -= A[i] * (26 ** i)
A = A[::-1]
for a in A:
    print(D[a], end='')
print('')
Buggy code:
N = int(input())
alpha = 'abcdefghijklmnopqrstuvwxyz'
ans = ''

while N > 0:
	ans += alpha[N%26-1]
	N = N//26

print(ans)

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

while N > 0:
  N = N - 1
  ans = alpha[N%26] + ans
  N = N//26

print(ans)
Buggy code:
a=int(input())
s=0
d=1
si=[]
while a>0:
    b=a%26
    si.append(b)
    a=a//26
    if b==0:
      a-=1
    
    
 
c=""
for i in si:
  if i==0:
    i=26
  c+=chr(i+96)
c=c[::-1]
print(c)
print(si)

Fixed code:
a=int(input())
s=0
d=1
si=[]
while a>0:
    b=a%26
    si.append(b)
    a=a//26
    if b==0:
      a-=1
    
    
 
c=""
for i in si:
  if i==0:
    i=26
  c+=chr(i+96)
c=c[::-1]
print(c)
Buggy code:
def num2alpha(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)
num = int(input())
answer = num2alpha(num)
print(answer)

Fixed code:
def num2alpha(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)
num = int(input())
answer = num2alpha(num)
print(answer.lower())
Buggy code:
N = int(input())
N -= 1

d = 26
for i in range(1,15):
    if N >= d:
        N -= d
        d *= 26
    else:
        d //= 26
        ans = ""
        # for j in range(i):
        #     ans += chr(N // d + ord("a"))
        #     N %= d
        #     d //= 26

        for j in range(i):
            ans += chr(N % 26 + ord("a"))
            N //= 26
        break

print(ans)

Fixed code:
N = int(input())
N -= 1

d = 26
for i in range(1,15):
    if N >= d:
        N -= d
        d *= 26
    else:
        d //= 26
        ans = ""
        for j in range(i):
            ans += chr(N // d + ord("a"))
            N %= d
            d //= 26
        break

print(ans)
Buggy code:
n = int(input())
A = 'abcdefghijklmnopqrstuvwxyz'
ANS = []

while n > 0:
    r = n % 27
    ANS.append(r)
    n = n // 27

ANS = reversed(ANS)

for a in ANS:
    print(A[a-1], end="")

Fixed code:
n = int(input())
A = 'abcdefghijklmnopqrstuvwxyz'
ANS = []

while n > 0:
    r = n % 26
    if r == 0:
        r = 26
    ANS.append(r)
    
    if ANS[-1] == 26:
      n -= 1
    n = n // 26

ANS = reversed(ANS)

for a in ANS:
    print(A[a-1], end="")
Buggy code:
n = int(input())
alpha = [chr(x) for x in range(ord('a'), ord('z')+1)]
name = ''
while n:
  n -= 1
  r = int(n%26)
  n = n // 26
  print(n, r)
  name += alpha[r]
print(name[::-1])

Fixed code:
n = int(input())
alpha = [chr(x) for x in range(ord('a'), ord('z')+1)]
name = ''
while n:
  n -= 1
  r = int(n%26)
  n = n // 26
  name += alpha[r]
print(name[::-1])
Buggy code:
a = list('abcdefghijklmnopqrstuvwxyz')
n = int(input()) - 1

ans = ""
while True:
  b = n // 26
  c = n % 26
  print(b)
  print(c)
  if b == 0:
    ans = a[c] + ans
    break
  elif b == 1:
    ans = a[b - 1] + a[c] + ans
    break
  else:
    ans = a[c] + ans
    n = b - 1
    
print(ans)

Fixed code:
a = list('abcdefghijklmnopqrstuvwxyz')
n = int(input()) - 1

ans = ""
while True:
  b = n // 26
  c = n % 26
  if b == 0:
    ans = a[c] + ans
    break
  elif b == 1:
    ans = a[b - 1] + a[c] + ans
    break
  else:
    ans = a[c] + ans
    n = b - 1
    
print(ans)
Buggy code:
N = int(input())
t = N-1
d = 1
s = ''

while t-26**d > 0:
    t -= 26**d
    d += 1

while t > 0:
    r = t % 26
    t //= 26
    s += chr(r+ord('a'))

s += 'a' * min(0, d-len(s))
print(s[::-1])

Fixed code:
N = int(input())
t = N
d = 1
s = ''

while t-26**d > 0:
    t -= 26**d
    d += 1
t -= 1

while t > 0:
    r = t % 26
    t //= 26
    s += chr(r+ord('a'))

s += 'a' * max(0, d-len(s))
print(s[::-1])
Buggy code:
N = int(input())
letters = 'zabcdefghijklmnopqrstuvwxy'

def solve(N):
    md = N%26
    l = letters[md]
    if md==0: md=26
    if N>26:
        return solve((N-md)//26) + l
    else:
        return l


Fixed code:
N = int(input())
letters = 'zabcdefghijklmnopqrstuvwxy'

def solve(N):
    md = N%26
    l = letters[md]
    if md==0: md=26
    if N>26:
        return solve((N-md)//26) + l
    else:
        return l

print(solve(N))
Buggy code:
n = int(input())
l = ["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"]
answer = []
while n >= 1:
    n -= 1
    print(n)
    answer.append(l[n % 26])
    n = n//26
ans = ''.join(list(reversed(answer)))
print(ans)

Fixed code:
n = int(input())
l = ["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"]
answer = []
while n >= 1:
    n -= 1
    answer.append(l[n % 26])
    n = n//26
ans = ''.join(list(reversed(answer)))
print(ans)
Buggy code:
N = int ( input().strip() ) ;

c = 0 ;
r = 1 ;
while c < N :
	x = pow ( 26 , r ) 
	if x  + c >= N :
		break ;
	r += 1; 
	c += x ;
	print ( r , c ) ;

v = N - c -1 ;

L = [] ;
for x in range ( r ) :
	L.insert( 0 , chr( v % 26 + ord('a') ) ) ; 
	v //= 26 ;
print ( "".join(L) ) ;

Fixed code:
N = int ( input().strip() ) ;

c = 0 ;
r = 1 ;
while c < N :
	x = pow ( 26 , r ) 
	if x  + c >= N :
		break ;
	r += 1; 
	c += x ;

v = N - c -1 ;

L = [] ;
for x in range ( r ) :
	L.insert( 0 , chr( v % 26 + ord('a') ) ) ; 
	v //= 26 ;
print ( "".join(L) ) ;
Buggy code:
N = int(input())
i = 0
list26 = []
while (N > 0):
    list26.append(N%26)
    N = int(N/26)

print(list26)
for i in range(len(list26)):
    if(i != len(list26)-1):
        if(list26[i] <= 0):
            list26[i] = list26[i] + 26
            list26[i+1] = list26[i+1] - 1
    else:
        if(list26[i]==0):
            list26.pop(i)
            
list26.reverse()

ans = ""

for x in list26:
    ans += str(chr(ord('a')+x-1))
print(ans)

Fixed code:
N = int(input())
i = 0
list26 = []
while (N > 0):
    list26.append(N%26)
    N = int(N/26)

for i in range(len(list26)):
    if(i != len(list26)-1):
        if(list26[i] <= 0):
            list26[i] = list26[i] + 26
            list26[i+1] = list26[i+1] - 1
    else:
        if(list26[i]==0):
            list26.pop(i)
            
list26.reverse()

ans = ""

for x in list26:
    ans += str(chr(ord('a')+x-1))
print(ans)
Buggy code:
def main():
    n = int(input())
    A = list("zabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz")
    beki = [0, 26, 702, 18278, 475254, 12356630, 321272406, 8353082582, 217180147158, 5646683826134, 146813779479510, 3817158266467286]

    ika = 0
    for i in range(12):
        if n <= beki[i]:
            ika = i
            ran = n - beki[i-1]
            break

    print(ran)
    t = ['']*ika
    for i in range(ika)[::-1]:
        d,m = divmod(ran,26)
        t[i] = A[m]
        print(n,d,m,t)
        ran = d
        if m != 0:
            ran += 1
#        if d == 0 or (d == 1 and m == 0):
#            break
    print(''.join(t))

if __name__ == '__main__':
    main()

Fixed code:
def main():
    n = int(input())
    A = list("zabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz")
    beki = [0, 26, 702, 18278, 475254, 12356630, 321272406, 8353082582, 217180147158, 5646683826134, 146813779479510, 3817158266467286]

    ika = 0
    for i in range(12):
        if n <= beki[i]:
            ika = i
            ran = n - beki[i-1]
            break

    t = ['']*ika
    for i in range(ika)[::-1]:
        d,m = divmod(ran,26)
        t[i] = A[m]
        ran = d
        if m != 0:
            ran += 1
#        if d == 0 or (d == 1 and m == 0):
#            break
    print(''.join(t))

if __name__ == '__main__':
    main()
Buggy code:
bounds = [sum([26 ** i for i in range(n)]) for n in range(1, 11)]
N = int(input())
for b in reversed(bounds):
    if b <= N:
        break
N -= b 
length = bounds.index(b) + 1
s = ''
for i in range(length - 1, 0, -1):
    idx, N = divmod(N, 26**i)
    s = s + lis[idx]
print(s + lis[N])

Fixed code:
bounds = [sum([26 ** i for i in range(n)]) for n in range(1, 12)]
lis = 'abcdefghijklmnopqrstuvwxyz'
N = int(input())
for b in reversed(bounds):
    if b <= N:
        break
N -= b 
length = bounds.index(b) + 1
s = ''
for i in range(length - 1, 0, -1):
    idx, N = divmod(N, 26**i)
    s = s + lis[idx]
print(s + lis[N])
Buggy code:
def main():
    import sys
    sys.setrecursionlimit(10**9)
    input = sys.stdin.readline

    a = "zabcdefghijklmnopqrstuvwxy"
    N = int(input())
    if N <= 26:
        print(a[N%26])

    ans = []
    d = 1
    m = 26
    while N != 0:
        tmp = (N % m)
        ans.append(a[tmp//d])
        N -= tmp if tmp != 0 else m
        d *= 26
        m *= 26
        if N <= 26:
            break
    
    ans.reverse()
    print(''.join(ans))

main()

Fixed code:
def main():
    import sys
    sys.setrecursionlimit(10**9)
    input = sys.stdin.readline

    a = "zabcdefghijklmnopqrstuvwxy"
    N = int(input())
    # if N <= 26:
    #     print(a[N%26])
    #     return

    ans = []
    d = 1
    m = 26
    while N != 0:
        tmp = (N % m)
        ans.append(a[tmp//d])
        N -= tmp if tmp != 0 else m
        d *= 26
        m *= 26
    
    ans.reverse()
    print(''.join(ans))

main()
Buggy code:
n = int(input())

def change(x):
  for i in range(26):
    if x == i:
      return "zabcdefghijklmnopqrstuvwxy"[i]

r = []

while n > 1:
  r.append(change(n%26))
  #print(n,end=" ")
  #print(change(n%26))
  n = (n - 1) // 26

s = len(r)
  
for i in range(s):
  print(r[s-1-i], end='')
  

Fixed code:
n = int(input())

def change(x):
  for i in range(26):
    if x == i:
      return "abcdefghijklmnopqrstuvwxyz"[i]

r = []

while n >= 1:
  n = n - 1
  r.append(change(n%26))
  #print(n,end=" ")
  #print(change(n%26))
  n = n // 26

s = len(r)
  
for i in range(s):
  print(r[s-1-i], end='')
Buggy code:
n=int(input())
def alpha2num(alpha):
    if alpha<=26:
        return chr(64+alpha)
    elif alpha%26==0:
        return alpha2num(alpha//26-1)+chr(90)
    else:
        return alpha2num(alpha//26)+chr(64+alpha%26)
print(alpha2num(n))

Fixed code:
n=int(input())
def alpha2num(alpha):
    if alpha<=26:
        return chr(64+alpha)
    elif alpha%26==0:
        return alpha2num(alpha//26-1)+chr(90)
    else:
        return alpha2num(alpha//26)+chr(64+alpha%26)
print(alpha2num(n).lower())
Buggy code:
n=int(input())
ans=''
alpha='abcdefghijklmnopqrstuvwxyz'
while n>0:
    ans+=alpha[((n-1)%26)]
    n-=1
    n//=26

print(ans)

Fixed code:
n=int(input())
ans=''
alpha='abcdefghijklmnopqrstuvwxyza'
while n>0:
    n-=1
    ans+=alpha[n%26]
    n//=26
print(ans[::-1])
Buggy code:
import math
from typing import List, NoReturn, Tuple


def main() -> NoReturn:
    n: int = int(input())
    # 0.9615384615384616 == 25 / 26
    group: int = math.ceil(math.log(0.9615384615384616 * n + 1, 26))
    in_group_index: int = n - (26 * (26 ** (group - 1) - 1)) // 25

    alphabet_num: List[int] = []
    alphabet: str = "abcdefghijklmnopqrstuvwxyz"
    temp = in_group_index
    for i in range(group - 1, -1, -1):
        alphabet_num.append(temp // 26 ** i)
        temp %= 26 ** i
    # else:
    #     alphabet_num[-1] -= 1
    name_chars: List[str] = [alphabet[i - 1] for i in alphabet_num]
    print("".join(name_chars))


if __name__ == '__main__':
    main()


Fixed code:
import math
from typing import List, NoReturn, Tuple


def main() -> NoReturn:
    n: int = int(input())
    # 0.9615384615384616 == 25 / 26
    group: int = math.ceil(math.log(0.9615384615384616 * n + 1, 26))
    in_group_index: int = n - 1 - (26 * (26 ** (group - 1) - 1)) // 25

    alphabet_num: List[int] = []
    alphabet: str = "abcdefghijklmnopqrstuvwxyz"
    temp = in_group_index
    for i in range(group - 1, -1, -1):
        alphabet_num.append(temp // 26 ** i)
        temp %= 26 ** i
    name_chars: List[str] = [alphabet[i] for i in alphabet_num]
    print("".join(name_chars))


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

num2alpha = lambda c: chr(c+96)
ans = []
newans = []
string = ''

while num > 0:
    if num % 26 == 0:
        ans.append(26)
    else:
        ans.append(num%26)
    if num < 27:
        break
    num =  int(int(num) / 26)
    
print(ans)

for item in ans:
    newans.append(num2alpha(item))

for item in reversed(newans):
    string = string + item

print(string)





Fixed code:
num = int(input())

num2alpha = lambda c: chr(c+96)
ans = []
newans = []
string = ''

while num > 0:
    if num % 26 == 0:
        ans.append(26)
    else:
        ans.append(num%26)
    if num < 27:
        break
    num =  int((int(num) - 1) / 26)
    

for item in ans:
    newans.append(num2alpha(item))

for item in reversed(newans):
    string = string + item

print(string)
Buggy code:
import string
n = int(input())
ans = ""

while (n != 0):
    s = n // 26
    t = n % 26
    p = string.ascii_lowercase[t-1]
    ans = ans + p
    n = s
print(ans)

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

while (n != 0):
    s = n // 26
    t = n % 26
    if (t == 0):
        s -= 1
        t += 26
    p = string.ascii_lowercase[t-1]
    ans = p+ans
    n = s
print(ans)
Buggy code:
N = int(input())
ans = ''
alphabet = 'zqbcdefghijklmnopqrstuvwxy'
while N > 0:
  ans +=alphabet[N%26]
  N = (N-1)//26
print(ans[::-1])

Fixed code:
N = int(input())
ans = ''
alphabet = 'zabcdefghijklmnopqrstuvwxy'
while N > 0:
  ans +=alphabet[N%26]
  N = (N-1)//26
print(ans[::-1])
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//=26
print(ans[::-1])
Buggy code:
#

import sys
input=sys.stdin.readline

def main():
    N=int(input())
    st=[]
    n=26
    for i in range(1,1000000):
        if N%n==0:
            st.append("z")
        else:
            st.append(chr(N%n+ord("a")-1))
        N=int(N//n)
        if N<=1:
            break
    st=st[::-1]
    print("".join(st))
    
    
    
if __name__=="__main__":
    main()


Fixed code:
#

import sys
input=sys.stdin.readline

def main():
    N=int(input())-1
    st=[]
    n=26
    for i in range(1,1000000):
        st.append(chr(N%n+ord("a")))
        N=int(N//n)
        if N==0:
            break
        N-=1
    st=st[::-1]
    print("".join(st))
    
    
    
if __name__=="__main__":
    main()
Buggy code:
def A(x):
  if ord(x) - ord('a') >= 0:
    print('a')
  else:
    print('A')


def B(n, k, p_list):
  p_list = sorted(p_list)
  print(sum(p_list[:k]))


def C(N):
  for i in range(99):
    if N < 26**i:
      ans = []
      for j in range(i):
        ans += chr(ord('a') + N % 26)
        N /= 26
      return ''.join(ans)
    else:
      N -= 26**i


def main():
  # letter = input()
  # A(letter)
  # for x in ['A', 'Z', 'a', 'z']:
  #   A(x)

  # n, k = map(int, input().split())
  # p_list = map(int, input().split())
  # B(n, k, p_list)
  print(C(int(input())))
  # C(702)
  # C(703)
  # C(18279)
  # C(475254)


if __name__ == '__main__':
  main()


Fixed code:
def A(x):
  if ord(x) - ord('a') >= 0:
    print('a')
  else:
    print('A')


def B(n, k, p_list):
  p_list = sorted(p_list)
  print(sum(p_list[:k]))


def C(N):
  for i in range(99):
    if N < 26**i:
      ans = []
      for j in range(i):
        ans += chr(ord('a') + N % 26)
        N //= 26
      return ''.join(ans[::-1])
    else:
      N -= 26**i


def main():
  # letter = input()
  # A(letter)
  # for x in ['A', 'Z', 'a', 'z']:
  #   A(x)

  # n, k = map(int, input().split())
  # p_list = map(int, input().split())
  # B(n, k, p_list)
  print(C(int(input())))
  #for i in range(1, 27):
  #  print(C(26 + i))
  # C(703)
  # C(18279)
  # C(475254)


if __name__ == '__main__':
  main()
Buggy code:
n = int(input())n = int(input())
n -= 1
ans = []
for i in range(100):
  if n >= 26:
    n -= 26
    ans.append(chr(n%26+97))
    n //= 26
ans.append(chr(n+97))
print(*ans[::-1],sep="")

Fixed code:
n = int(input())
n -= 1
ans = []
for i in range(100):
  if n >= 26:
    n -= 26
    ans.append(chr(n%26+97))
    n //= 26
ans.append(chr(n+97))
ans = ans[::-1]
print(*ans,sep="")
Buggy code:
def solve():
  N = int(input())
  k = 1
  while N>pow(26,k):
    N -= pow(26,k)
    k += 1
  ans = ''
  N -= 1
  for i in range(k,1,-1):
    ans += chr(ord('a')+N//pow(26,i-1))
    N%=pow(26,i-1)
  ans += chr(ord('a')+N%pow(26,i))
  return ans
print(solve())

Fixed code:
def solve():
  N = int(input())
  k = 1
  while N>pow(26,k):
    N -= pow(26,k)
    k += 1
  ans = ''
  N -= 1
  for i in range(k,0,-1):
    if i>1:
      ans += chr(ord('a')+N//pow(26,i-1))
    else:
      ans += chr(ord('a')+N%pow(26,i))
    N%=pow(26,i-1)
  return ans
print(solve())
Buggy code:
def main():
    alphabet = list(chr(i)for i in range(97, 123))
    n = int(input())
    ans = ''
    while n > 0:
        n -= 1
        ans += chr(ord('a') + (n % 26))
        n //= 26

    print(ans)


if __name__ == "__main__":
    main()


Fixed code:
def main():
    alphabet = list(chr(i)for i in range(97, 123))
    n = int(input())
    ans = ''
    while n > 0:
        n -= 1
        ans = chr(ord('a') + (n % 26)) + ans
        n = n//26

    print(ans)


if __name__ == "__main__":
    main()
Buggy code:
N = int(input())
lis = [1,26]
num = 26
n = 1
while lis[-1]<N:
    num *= 26
    lis.append(lis[-1]+num)
    n += 1
c = N-lis[-2]-1
ans = ''
for i in range(n):
    ans = chr(c%26+ord('a')) + ans
    c //= 26
print(ans)

Fixed code:
N = int(input())
lis = [0,26]
num = 26
n = 1
while lis[-1]<N:
    num *= 26
    lis.append(lis[-1]+num)
    n += 1
c = N-lis[-2]-1
ans = ''
for i in range(n):
    ans = chr(c%26+ord('a')) + ans
    c //= 26
print(ans)
Buggy code:
N = int(input())

alp = "abcdefghijklmnopqrstuvwxyz"
answer = ""

while N != 0:
  index = (N - 1) % 26
  answer += alp[index]
  N = N // 26
  
print(answer)

Fixed code:
N = int(input())

alp = "abcdefghijklmnopqrstuvwxyz"
answer = ""

while N != 0:
  N -= 1
  index = N % 26
  answer += alp[index]
  N = N // 26
  
print(answer[::-1])
Buggy code:
N = int(input())
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']
ans = ''

while N > 0:
    N-=1
    index = N%1
    ans = alpha[index] + ans
    N = N // 26
print(ans)

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

while N > 0:
    N-=1
    index = N%26
    ans = alpha[index] + ans
    N = N // 26
print(ans)
Buggy code:
import string

n = int(input())
alphabets = string.ascii_lowercase
answer = []
while n >= 1:
	n -= 1
    answer.append(alphabets[n % 26])
    n = n//26
ans = ''.join(list(reversed(answer)))
print(ans)


Fixed code:
import string

n = int(input())
alphabets = string.ascii_lowercase
answer = []
while n >= 1:
    n -= 1
    answer.append(alphabets[n % 26])
    n = n//26
ans = ''.join(list(reversed(answer)))
print(ans)
Buggy code:
N=int(input())
lista=["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"]
amari=[]
ans=""
while N!=0:
    (x,y)=divmod(N,26)
    amari.append(y)
    N=x
amari=amari[::-1]
print(amari)
while 0 in amari[1:]:
    for i in range(len(amari)-1):
        if amari[i+1]==0:
            amari[i]-=1
            amari[i+1]=26
if amari[0]==0:
    amari.pop(0)
print(amari)
print(amari)
for i in amari:
    ans+=lista[i-1]
print(ans)

Fixed code:
N=int(input())
lista=["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"]
amari=[]
ans=""
while N!=0:
    (x,y)=divmod(N,26)
    amari.append(y)
    N=x
amari=amari[::-1]
while 0 in amari[1:]:
    for i in range(len(amari)-1):
        if amari[i+1]==0:
            amari[i]-=1
            amari[i+1]=26
if amari[0]==0:
    amari.pop(0)
for i in amari:
    ans+=lista[i-1]
print(ans)
Buggy code:
n = int(input())
l = [chr(ord('a') + i) for i in range(26)]
l = [l.pop()] + l

print(l)

k = []

while n > 0:
    y = n % 26
    k.append(l[y])
    n -= 1
    n //= 26
print(''.join(reversed(k)))  

Fixed code:
n = int(input())
l = [chr(ord('a') + i) for i in range(26)]
l = [l.pop()] + l

k = []

while n > 0:
    y = n % 26
    k.append(l[y])
    n -= 1
    n //= 26
print(''.join(reversed(k)))
Buggy code:
def main():
    #input
    N=int(input())
    l=list("zabcdefghijklmnopqrstuvwxy")

    name=[]
    n=N
    while n>=26:
        mod=n%26
        if mod!=0:
            n//=26
        else:
            n//=26
            n-=1
        name.append(l[mod])
    if mod!=0:
       name.append(l[n])
    name=[name[n] for n in reversed(range(len(name)))]
    print("".join(name))

if __name__=="__main__":
    main()

Fixed code:
def main():
    #input
    N=int(input())
    l=list("zabcdefghijklmnopqrstuvwxy")
    if N<26:
        print(l[N])
    else:
        name=[]
        n=N
        while n>=26:
            mod=n%26
            if mod!=0:
                n//=26
            else:
                n//=26
                n-=1
            name.append(l[mod])
        if n!=0:
            name.append(l[n])
        name=[name[n] for n in reversed(range(len(name)))]
        print("".join(name))

if __name__=="__main__":
    main()
Buggy code:
n = int(input())
word = ''
while n>1:
    a ,b = divmod(n, 26)
    if b == 0:
        word += (chr(96 + 26))
    else:
        word += (chr(96 + b))
    n = a
print(word[::-1])


Fixed code:
n = int(input())
word = ''
while n:
    a ,b = divmod(n, 26)
    if b == 0:
        word += (chr(96 + 26))
        n = a - 1
    else:
        word += (chr(96 + b))
        n = a
print(word[::-1])
Buggy code:
n = int(input())
ans=num2alpha(n)
print(ans.lower())
def num2alpha(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)
     



Fixed code:
N=int(input())


def num2alpha(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)
      
ans=num2alpha(N)

print(ans.lower())
Buggy code:
import sys
import itertools
# import numpy as np
import time
import math
 
sys.setrecursionlimit(10 ** 7)
 
from collections import defaultdict
 
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

# map(int, input().split())
# list(map(int, input().split()))

N = int(input())

x = 26
d = 1
while N > x:
    N //= x
    x *= 26
    d += 1

N -= 1
ans = ''
for i in range(d):
    ans += chr(ord('a') + N % 26)
    N //= 26

print(ans[::-1])

Fixed code:
import sys
import itertools
# import numpy as np
import time
import math
 
sys.setrecursionlimit(10 ** 7)
 
from collections import defaultdict
 
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

# map(int, input().split())
# list(map(int, input().split()))

N = int(input())

x = 26
d = 1
while N > x:
    N -= x
    x *= 26
    d += 1
N -= 1
ans = ''
for i in range(d):
    ans += chr(ord('a') + N % 26)
    N //= 26

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

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