qyliang/CodeNanoFix huggingface dataset:
Buggy code:
S = input()
if S[-1] == 's':
  ans += 'es'
else:
  ans += 's'
print(ans)

Fixed code:
S = input()
if S[-1]=="s":
    ans = S+"es"
else:
    ans = S+"s"
print(ans)
Buggy code:
import sys
input = sys.stdin.readline

s = input()

if s[len(s)-1] == "s":
    ans = s.rstrip() + "es"
    print(ans)
else:
    ans = s.rstrip() + "s"
    print(ans)

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

s = input()

if s[len(s)-2] == "s":
    ans = s.rstrip() + "es"
    print(ans)
else:
    ans = s.rstrip() + "s"
    print(ans)
Buggy code:
s = input()
if s[-1] == "s":
  print(s[:-1]+"es")
else:
  print(s+"s")

Fixed code:
a=input()
if a[-1]=='s':
    print(a+'es')
else:
    print(a+'s')
Buggy code:
n = input()
a = 's'
b = 'es'
if n[-1] == 's':
    n = n + b
else:
    n = n + a

Fixed code:
n = input()
a = 's'
b = 'es'
if n[-1] == 's':
    n = n + b
else:
    n = n + a
print(n)
Buggy code:
S=input()
if S[-1]==s:
    print(S+"es")
else:
    print(S+"s")

Fixed code:
s = input()

if s[-1] == "s":
    print(s + "es")

else:
    print(s + "s")
Buggy code:
import sys
sys.setrecursionlimit(10**6)


def main(input, print):
    s = input()

    if(s[-1] == 's'):
        print(s+'es')
    else:
        print(s+'s')


if __name__ == '__main__':
    main(sys.stdin.readline, print)


Fixed code:
import sys
sys.setrecursionlimit(10**6)


def main(input, print):
    s = input().strip()

    if(s[-1] == 's'):
        print(s+'es')
    else:
        print(s+'s')


if __name__ == '__main__':
    main(sys.stdin.readline, print)
Buggy code:
s = input()

if s[-1] == "s":
    print(s[:-1] + "es")

else:
    print(s + "s")


Fixed code:
s = input()
print(s+"es" if s[-1]=="s" else s+"s")
Buggy code:
S=str(input())
if s[-1]=s:
    print(S+"es")
else:
    print(S+"s")

Fixed code:
S = input()

if S[-1] == "s":
  print(S+"es")
else:
  print(S+"s")
Buggy code:
S=input()

if S.endswith=='s':
  S=S+'es'
else:
  S=S+'s'
  
print(S)

Fixed code:
S=input()

if S.endswith('s'):
  S=S+'es'
else:
  S=S+'s'
  
print(S)
Buggy code:
val = input()
valf=val[-1]
if(valf==s):
    print(val+"es")
else
    print(val+"s")

Fixed code:
val = input()
valf=val[-1]
if(valf=="s"):
    print(val+"es")
else:
    print(val+"s")
Buggy code:
S = input()
if S[-1] == s
	print(S + 'es')
else:
 	print(S + 's')

Fixed code:
s=input()
if s[-1] == "s":
  print(s + "es")
else:
  print(s+'s')
Buggy code:
import sys
import collections as cc
import bisect as bi
I=lambda:list(map(int,input().split()))
s=input()
if s[-1]!='s':
	print(s[:len(s)-1]+'es')
else:
	print(s[:len(s)-1]+'s')

Fixed code:
import sys
import collections as cc
import bisect as bi
I=lambda:list(map(int,input().split()))
s=input()
if s[-1]!='s':
	print(s[:len(s)]+'s')
else:
	print(s+'es')
Buggy code:
s = input()
if s[-1] == "s":
    print(s + "es")
else:
    print(sa + "s")

Fixed code:
s = input()

if s[-1] == 's':
   print(s+'es')
else:
   print(s+'s')
Buggy code:
S = input()
print(S + 's' if S[-1] != 's' else 'es')


Fixed code:
S = input()
print(S + ('s' if S[-1] != 's' else 'es'))
Buggy code:
s =input()

if s[-1] == s:
  print(s+'es')
else:
  print(s+'s')

Fixed code:
s = input()
if s[len(s)-1] == 's':
    print(s+"es")
else:
    print(s+'s')
Buggy code:
s =input()

if s[-1] == s:
  print('es')
else:
  print('s')

Fixed code:
s=input()  
if s[-1]=='s':
  print(s+'es')
else:
  print(s+'s')
Buggy code:
def main():
  s = input()
  if s[-1] == s:
    ans = s + 'es'
  else:
    ans = s + 's'
  print(ans)
  
main()

Fixed code:
def main():
  s = input()
  if s[-1] == 's':
    ans = s + 'es'
  else:
    ans = s + 's'
  print(ans)
  
main()
Buggy code:
S = list(input())
num = len(S) - 1
if S[num] == 's':
    S[num] = 'e'
    S.append('s')
else:
    S.append('s')
print(''.join(S))

Fixed code:
S = list(input())
num = len(S) - 1
if S[num] == 's':
    S.append('e')
    S.append('s')
else:
    S.append('s')
print(''.join(S))
Buggy code:
s = input()

if (s[-1:] == "s"):
    print(s)
else:
    print(s + "s")

Fixed code:
s = input()

if s[-1] == "s" :
    s[:-1]
    s = s + "es"
else :
    s = s + "s"

print(s)
Buggy code:
s=input()
if s[-1]==s:
    print(s+"es")
else:
    print(s+"s")

Fixed code:
S = input()
if S[-1] == "s":
    print(S + 'es')
else:
    print(S + 's')
Buggy code:
i = input()
if i[:1] == "s": i += "es"
else: i+= "s"
print(i)

Fixed code:
i = input()
if i[-1:] == "s": i += "es"
else: i+= "s"
print(i)
Buggy code:
def createPlural(s):
    if s[-1] == "s":
        return s[:-1] + "es"
    else:
        return s + "s"

s = input()
s_plural = cratePlural
print(s_plural)

Fixed code:
def createPlural(s):
    if s[-1] == "s":
        return s + "es"
    else:
        return s + "s"

s = input()
s_plural = createPlural(s)
print(s_plural)
Buggy code:
s=input()

if s[:-1]=='s':
  print(s+'es')
  
else:
  print(s+'s')

Fixed code:
s=input()
if s[-1]=="s":
    print(s+"es")
else:
    print(s+"s")
Buggy code:
a=input()
e=a[len(a)-1:len(a)-1]
if e == "s":
    print(a+"es")
else:
    print(a+"s"

Fixed code:
a=input()
e=a[len(a)-1:len(a)]
if e == "s":
    print(a+"es")
else:
    print(a+"s")
Buggy code:
word = input()
if word[-1] == "s":
  print(word + "es)
else:
  print(word)


Fixed code:
s = input()
if s[-1] == 's':
    print(s + "es")
else:
    print(s + "s")
Buggy code:
print(input()+('es' if s[-1] == 's' else 's'))

Fixed code:
s = input()
if s[-1] == 's':
    print(s + 'es')
else:
    print(s + 's')
Buggy code:
S = input()

if S[-1] != "s":
    print(S+"s")
else:
    print(S[:-1]+"es")

Fixed code:
s = input()
if s[-1] != "s":
  print(s+"s")
else:
  print(s+"es")
Buggy code:
import math

from fractions import Fraction as frac

MOD = 1e9 + 7

def gcd(a, b):

    if b == 0:

        return a

    return gcd(b, a % b)

def lcm(a, b):

    return a * b // gcd(a, b)

def solve(case_no):

    s = str(input())

    if s[len(s) - 1] == 's':

    	print(s[:len(s) - 1] + "es")
    else:

    	print(s + 's')

t = 1

# t = int(input())

for i in range(1, t + 1):

    solve(i)

Fixed code:
import math

from fractions import Fraction as frac

MOD = 1e9 + 7

def gcd(a, b):

    if b == 0:

        return a

    return gcd(b, a % b)

def lcm(a, b):

    return a * b // gcd(a, b)

def solve(case_no):

    s = str(input())

    if s[len(s) - 1] == 's':

    	print(s + "es")
    else:

    	print(s + 's')

t = 1

# t = int(input())

for i in range(1, t + 1):

    solve(i)
Buggy code:
n=input()
if n[-1]='s':
  print(n+'es')
else:
  print(n+'s')
    

Fixed code:
s= input()
if s[-1]=='s':
    s=s+'es'
else:
    s = s + 's'
print(s)
Buggy code:
s = input()
if s[-1] == "s":
    print(s+"s")
else:
    print(s+"es")

Fixed code:
l = input()
if l[-1] == 's':
  print(l+'es')
else:
  print(l+'s')
Buggy code:
import os
import sys
from collections import defaultdict, Counter
from itertools import product, permutations,combinations, accumulate
from operator import itemgetter
from bisect import bisect_left,bisect
from heapq import heappop,heappush,heapify
from math import ceil, floor, sqrt
from copy import deepcopy
 


def main():
  	s = input()
   	if s[-1] == "s":
        print(s + "es")
   	else:
        print(s + "s")

if __name__ == "__main__":
    main()

Fixed code:
import os
import sys
from collections import defaultdict, Counter
from itertools import product, permutations,combinations, accumulate
from operator import itemgetter
from bisect import bisect_left,bisect
from heapq import heappop,heappush,heapify
from math import ceil, floor, sqrt
from copy import deepcopy
 


def main():
    s = input()
    if s[-1] == "s":
        print(s + "es")
    else:
        print(s + "s")

if __name__ == "__main__":
    main()
Buggy code:
s = input()

if s[-1] == 's':
  print(s[0:-1] + 'es')
else:
  print(s + 's')


Fixed code:
s = input()

if s[-1] == 's':
  print(s + 'es')
else:
  print(s + 's')
Buggy code:
S = str(input())

if S[-1] != 'S':
  S = S + 's'
else:
  S = S + 'es'
  
print(S)

Fixed code:
S = str(input())

if S[-1] != 's':
  S = S + 's'
else:
  S = S + 'es'
  
print(S)
Buggy code:
S = input()
if S[-1]=='s':
  print(S+'s')
else:
  print(S+'es')

Fixed code:
S = input()
if S[-1]=='s':
    ans = S + 'es'
else:
    ans = S + 's'
print(ans)
Buggy code:
s = input()
if s[-1]=="s":print(s+"es")
else:print(s+"es")



Fixed code:
A=input()
if A[-1]=="s":
  print(A+"es")
else:
  print(A+"s")
Buggy code:
word = input()
	if(word[-1] == 's'):
  		print(word+'es')
 	else:
      print(word+'s')

Fixed code:
s=input()
if s[-1]=='s':print(s+'es')
else:print(s+'s')
Buggy code:
s = str(input())

if s[-1] == 's':
    print(s[:-2] + 'es')
else:
    print(s + 's')

Fixed code:
s = str(input())

if s[-1] == 's':
    print(s + 'es')
else:
    print(s + 's')
Buggy code:
chr = input("")
num = len(s)

if chr[num-1] == "s":
  print(chr + "es")
else:
  print(chr + "s")
  
  

Fixed code:
chr = input("")
num = len(chr)

if chr[num-1] == "s":
  print(chr + "es")
else:
  print(chr + "s")
Buggy code:
s = input()

if s[-1] != 's':
	print(s)
else:
	print(s + 'es')

Fixed code:
string = input()
if string[-1] != 's':
  string = string + 's'
else:
  string = string + 'es'
print(string)
Buggy code:
s = input()

if s[-1] == 's':
	print(s)
else:
	print(s + 'es')

Fixed code:
s = input()
if s[-1] == 's':
    print(s + 'es')
else:
    print(s+'s')
Buggy code:
s=input()
if s[-1]==s:
    print(s+"s")
else:
    print(s+"es")

Fixed code:
s = input()

if s[-1]=='s':
    s+='es'
else:
    s+='s'
print(s)
Buggy code:
s = input()

if s[-1] = "s":
  print(s + "es")
else:
  print(s + "s")

Fixed code:
S=input()
if S[-1]=='s':
    S+='es'
else:
    S+='s'
print(S)
Buggy code:
s=input()
n=len(s)
if s[n-1]!=s:
  s=s[0:n-1]+'s'
else:
  s=s[0:n-1]+'es'
print(s)

Fixed code:
s=input()
n=len(s)
if s[n-1]!='s':
  s=s[0:n]+'s'
elif s[n-1]=='s':
  s=s[0:n]+'es'
print(s)
Buggy code:
word = input()
if word[-1] == "s":
  word_new =word[:-1] + "es"
  print(word_new)
else:
  print(word + "s")

Fixed code:
word = input()
if word[-1] == "s":
  word_new = word + "es"
  print(word_new)
else:
  print(word + "s")
Buggy code:
s = input()
print(s+'es' if s[-1]==s else s+'s')

Fixed code:
s = input()
print(s+'es' if s[-1]=='s' else s+'s')
Buggy code:
singular = input()
if singular[-1] == "s":
    print(singular + "es)
else:
    print(singular + "s")

Fixed code:
singular = input()
if singular[-1] == "s":
    print(singular + "es")
else:
    print(singular + "s")
Buggy code:
s=list(input())
if s[-1]=='s':
    print(s+'es')
else:
    print(s+'s')

Fixed code:
s = input()
if s[-1] == "s":
    s = s+ "es"
else:
    s = s + "s"
print(s)
Buggy code:
s = input()
if s[-1] == "e":
    print(s + "s")
else:
    print(s + "es")

Fixed code:

s = input()

if s[-1] == "s":
    print(s+"es")
else:
    print(s+"s")
Buggy code:
S = list(str(input()))
L = len(S)
if S[L-1] == "s":
    S[L-1] = "es"
else:
    S.append("s")
K =''.join(S)
print(K)

Fixed code:
S = list(str(input()))
L = len(S)
if S[L-1] == "s":
    S.append("es")
else:
    S.append("s")
K =''.join(S)
print(K)
Buggy code:
input_n = input()
n = str(input_n)

listN = list(n)
#listN = n.split(' ')

if listN[len(listN)] = "s":
    listN.append("e")
    listN.append("s")
else:
    listN.append("s")

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


Fixed code:
input_n = input()
n = str(input_n)

listN = list(n)
#listN = n.split(' ')

if listN[len(listN) - 1] == "s":
    listN.append("e")
    listN.append("s")
else:
    listN.append("s")

for i in range(len(listN)):
    print(listN[i], end = "")
Buggy code:
def main():
    n = list(str(input()))
    if n[-1] == "e":
        n.append("s")
    else :
        n.append("es")
    print(''.join(n))
main()

Fixed code:
def main():
    n = list(str(input()))
    if n[-1] == "s":
        n.append("es")
    else :
        n.append("s")
    print(''.join(n))
main()
Buggy code:
string = input()

if string[-1] != 's':
  new_string = string[0:-1] + 's'
if string[-1] = 's':
  new_string = string[0:-1] +'es'
 
print(new_string)

Fixed code:
string = input()
 
if string[-1] != 's':
  new_string = string[0:] + 's'
if string[-1] == 's':
  new_string = string[0:] +'es'
 
print(new_string)
Buggy code:
S = input()
if(S[-1]=='s'):
  S=S[:-1]+'es'
else:
  S=S+'s'
print(S)

Fixed code:
s = input()

if s[-1] == "s":
    print(s+"es")
else:
    print(s + "s")
Buggy code:
S = input()
if(S[-1]=='s'):
  del S[-1]
  S=S+'es'
else:
  S=S+'s'
print(S)

Fixed code:
S = input()
if S[-1]=="s":
    print(S+"es")
else:
    print(S+"s")
Buggy code:
s = input()

if s[-1]=='e':
    s=s+'s'
else:
    s=s+'es'
print(s)   

Fixed code:
s=input()
if(s[-1]=='s'):
  s+='es'
else:
  s+='s'
print(s)
Buggy code:
S = input()

N = S[-1]

if N == 'e':
    print(S+'s')

else:
    print(S+'es')


Fixed code:
S = input()

N = S[-1]


if N == 's':
    print(S+'es')

else:
    print(S+'s')
Buggy code:
s = input()
if s[-1] == s:
  print(s+"es")
else:
  print(s+"s")

Fixed code:
s = input()
if s[-1]=='s':
	s=s+'es'
else:
	s=s+'s'

print(s)
Buggy code:
s = input()
if s[len(s)-1] != s:
    print(s + "s")
else:
    print(s + "es")

Fixed code:
s = input()
if s[len(s)-1] != "s":
    print(s + "s")
else:
    print(s + "es")
Buggy code:
a = input()
 
if a[-1] = 's':
  print(a end='es')
else:
  print(a end='s')

Fixed code:
a = input()
 
if a[-1] == 's':
  print(a, end='es')
else:
  print(a, end='s')
Buggy code:
S = input()
if S[-1:] = s:
  print(S+"es")
else:print(S+"s")

Fixed code:
S = input()

if (S[-1] != "s"):
    print(S + "s")
else:
    print(S + "es")
Buggy code:
s=input()
if s[-1]=='s':
  s+='es'
else:
  s+='s'

Fixed code:
s = input()

if s[-1] == "s":
      print(s+"es")
else:
      print(s+"s")
Buggy code:
s = input()
ret = s
if s[::-1] == "s":
    ret += "es"
else:
    ret += "s"

print(ret)

Fixed code:
s = input()
ret = s
if s[-1] == "s":
    ret += "es"
else:
    ret += "s"

print(ret)
Buggy code:
S = str(input())

if S[len(S)-1] == 'e':
    print(S + 's')
else:
    print(S + 'es')

Fixed code:
S = str(input())

if S[len(S)-1] == 's':
    print(S + 'es')
else:
    print(S + 's')
Buggy code:
a = str(input())
if a[-1] != 's':
  print(a+'s')
else:
  ans = a[:-1] + 'es'
  print(ans)

Fixed code:
a = str(input())
if a[-1] != 's':
  print(a+'s')
else:
  ans = a+ 'es'
  print(ans)
Buggy code:
S = input()
if S[-1] == 'e':
    print(S+'s')
else:
    print(S+'es')



Fixed code:
S=input()
if S[-1]=='s':
    S+='es'
else:
    S+='s'
print(S)
Buggy code:
s=input()
if s[-1]==s:
    s+='es'
else:
    s+='s'
print(s)

Fixed code:
S=input()
if S[-1]=='s':
  S+='es'
else:
  S+='s'
print(S)
Buggy code:
if __name__ == '__main__':
    try:
        singular = str(input())
        singular.lower()
        if singular[len(singular)-1] != 's':
            singular += 's'
            print(s)
        else:
            singular += 'es'
            print(s)
    except Exception:
        pass

Fixed code:
if __name__ == '__main__':
    try:
        s = str(input())
        s.lower()
        if s[len(s)-1] != 's':
            s += 's'
            print(s)
        else:
            s += 'es'
            print(s)
    except Exception:
        pass
Buggy code:
s = input()
if s[-1] == 's':
    print(s[:-1]+"es")
else:
    print(s+'s')

Fixed code:
s=input()
if s[len(s)-1]=="s":
    s=s+"es"
else:
    s=s+"s"
print(s)
Buggy code:
s = input()
a = (len(s))
if (s[a-1])=="e":
    print(s,"s", sep="")
else:
    print(s,"es", sep="")

Fixed code:
s = input()
a = (len(s))
if (s[a-1])=="s":
    print(s,"es", sep="")
else:
    print(s,"s", sep="")
Buggy code:
s = input()
if s[-1] != s:
  print(s + "s")
else:
  print(s + "es")

Fixed code:
s = input()

if s[-1] == 's':
  s = s + 'es'
else:
  s = s + 's'
  
print(s)
Buggy code:
if s[-1] == 's':      
    s += 'es'                                                                                                 
else:      
    s += 's'      
print(s) 

Fixed code:
s = input()                                                                                                   
if s[-1] == 's':
    s += 'es'
else:
    s += 's'      
print(s)
Buggy code:
n, x, m = map(int, input().split())

a = []
check = [-1] * m
i = 0
while check[x] == -1:
  a.append(x)
  check[x] = i
  x = x * x % m
  i += 1
if n <= i:
  print(sum(a[:n]))
else:
  print(
    sum(a[:check[x]])
    + (n - check[x]) // (i - check[x]) * sum(a[check[x]:])
    + sum(a[check[x] : check[x] + (n - check[x]) // (i - check[x])]))

Fixed code:
n, x, m = map(int, input().split())

a = []
check = [-1] * m
i = 0
while check[x] == -1:
  a.append(x)
  check[x] = i
  x = x * x % m
  i += 1
if n <= i:
  print(sum(a[:n]))
else:
  print(
    sum(a[:check[x]])
    + (n - check[x]) // (i - check[x]) * sum(a[check[x]:])
    + sum(a[check[x] : check[x] + (n - check[x]) % (i - check[x])]))
Buggy code:
# -*- coding: utf-8 -*-

def input_int_array():
    return map(int, input().split())


def find_index(a, x, count):
    for i in range(count):
        if a[i] == x:
            return i
    return -1


def answer(n, x, m):
    a1 = x
    ai = a1
    loop_start = -1
    loop_end = n
    a[1] = a1
    ans = a1
    for i in range(2, n + 1):
        ai = ai*ai % m
        a.append(ai)
        ans += ai
        index = find_index(a, ai, i)
        for j in range(1, i):
            if a[j] == ai:
                loop_start = index
                loop_end = i
                break
        if loop_start >= 0:
            break
    if loop_start < 0:
        print(ans)
        return
    ans -= ai
    loop_count, remaining = divmod(n - (loop_start - 1), loop_end - loop_start)
    if loop_count > loop_start:
        start_ans = 0
        for i in range(1, loop_start):
            start_ans += a[i]
        loop_sum = ans - start_ans
        ans += loop_sum * (loop_count-1)
        for i in range(loop_start, loop_start + remaining):
            ans += a[i]
    else:
        for i in range(loop_start, loop_end):
            if i < remaining:
                ans += a[i]
            loop_sum += a[i]
        ans += loop_sum * (loop_count-1)
    print(ans)


n, x, m = input_int_array()
a = [0, 0]

answer(n, x, m)


Fixed code:
# -*- coding: utf-8 -*-

def input_int_array():
    return map(int, input().split())


def answer(n, x, m):
    a1 = x
    ai = a1
    loop_start = -1
    loop_end = n
    a[1] = a1
    ans = a1
    for i in range(2, n + 1):
        ai = ai*ai % m
        a.append(ai)
        ans += ai
        for j in range(1, i):
            if a[j] == ai:
                loop_start = j
                loop_end = i
                break
        if loop_start >= 0:
            break
    if loop_start < 0 or ai == 0:
        print(ans)
        return
    ans -= ai
    loop_count, remaining = divmod(n - (loop_start - 1), loop_end - loop_start)
    if loop_count > loop_start:
        start_ans = 0
        for i in range(1, loop_start):
            start_ans += a[i]
        loop_sum = ans - start_ans
        ans += loop_sum * (loop_count-1)
        for i in range(loop_start, loop_start + remaining):
            ans += a[i]
    else:
        for i in range(loop_start, loop_end):
            if i < remaining:
                ans += a[i]
            loop_sum += a[i]
        ans += loop_sum * (loop_count-1)
    print(ans)


n, x, m = input_int_array()
a = [0, 0]

answer(n, x, m)
Buggy code:
N, X, M = map(int, input().split())
dp = [False]*(M+1)
dp[X] = True
S = [0]*(M+1)
S[1] = X
tmp = X
for i in range(2, M+1):
    tmp = pow(tmp, 2, M)
    if dp[tmp]:
        for j in range(i):
            if tmp == S[j]:
                break
        ans = 0
        for k in range(j, i):
            ans += S[k]
        ans *= (N-j-1)//(i-j)
        for k in range(1, j):
            ans += S[k]
        for k in range(j, j+(N-j-1)%(i-j)):
            ans += S[k]
        print(ans)
        break
    else:
        dp[tmp] = True
        S[i] = tmp
else:
    print(sum(S))

Fixed code:

N, X, M = map(int, input().split())
dp = [False]*(M+1)
dp[X] = True
S = [0]*(M+1)
S[1] = X
tmp = X
for i in range(2, min(M+1, N+1)):
    tmp = pow(tmp, 2, M)
    if dp[tmp]:
        for j in range(1, i):
            if tmp == S[j]:
                break
        ans = 0
        for k in range(j, i):
            ans += S[k]
        ans *= (N-j+1)//(i-j)
        for k in range(1, j):
            ans += S[k]
        for k in range(j, j+(N-j+1)%(i-j)):
            ans += S[k]
        print(ans)
        break
    else:
        dp[tmp] = True
        S[i] = tmp
else:
    print(sum(S))
Buggy code:
N,X,M=map(int,input().split())
A=[X]
x=(A[0]**2)%M
i=0
while not x in A:
    A.append(x)
    i+=1
    x=(x**2)%M

loopid=A.index(x)
looplen=i-loopid+1
loopsum=sum(A[loopid:])
startsum=sum(A[:loopid])

ans=0
if N-1<loopid:
    ans=sum(A[:N])
else:
    loopnum=(N-1-loopid+1)//looplen if looplen else N-1-loopid
    rest=N-1-(loopid+looplen*loopnum)+1
    print(loopid,loopnum,looplen)
    print(startsum,loopsum,rest)
    ans+=startsum
    ans+=loopnum*loopsum
    ans+=sum(A[loopid:loopid+rest])
print(ans)


Fixed code:
N,X,M=map(int,input().split())
A=[X]
x=(A[0]**2)%M
i=0
while not x in A:
    A.append(x)
    i+=1
    x=(x**2)%M

loopid=A.index(x)
looplen=i-loopid+1
loopsum=sum(A[loopid:])
startsum=sum(A[:loopid])

ans=0
if N-1<loopid:
    ans=sum(A[:N])
else:
    loopnum=(N-1-loopid+1)//looplen if looplen else N-1-loopid
    rest=N-1-(loopid+looplen*loopnum)+1
    ans+=startsum
    ans+=loopnum*loopsum
    ans+=sum(A[loopid:loopid+rest])
print(ans)
Buggy code:
def main():
    N, X, M = map(int, input().split())
    a = X
    r = a
    i = 1
    S = {X: (a, 0)}
    ns = True
    while i < N:
        an = (a * a) % M
        if an == 0:
            break
        if ns and an in S:
            l = S[a][1] - S[an][1] + 1
            skip = (N - i - 1) // l
            r += (r - S[an][0]) * skip
            i += l * skip
            ns = False
        if i >= N:
            break
        a = an
        r += a
        S[a] = (r, i)
        i += 1

    return r

# print("Yes" if main() else "No")
print(main())


Fixed code:
def main():
    N, X, M = map(int, input().split())
    a = X
    r = a
    i = 1
    S = {X: (0, 0)}
    ns = True
    while i < N:
        an = (a * a) % M
        if an == 0:
            break
        if ns and an in S:
            l = S[a][1] - S[an][1] + 1
            skip = (N - i - 1) // l
            r += (r - S[an][0]) * skip
            i += l * skip
            ns = False
        if i >= N:
            break
        a = an
        S[a] = (r, i)
        r += a
        i += 1

    return r

# print("Yes" if main() else "No")
print(main())
Buggy code:
N, X, M = map(int, input().split())

nxt = X
lst = []
dic = {}

for i in range(M):
    if nxt in dic:
        loop_st = dic[nxt]
        loop_ed = i - 1
        break

    lst.append(nxt)
    dic[nxt] = i

    nxt = (nxt ** 2) % M


v = N - loop_st
q, r = divmod(v, loop_ed - loop_st + 1)

pre_sum = sum(lst[:loop_st])
loop_sum = q * sum(lst[loop_st:])
post_sum = sum(lst[loop_st:loop_st + r])


Fixed code:
N, X, M = map(int, input().split())

nxt = X
lst = []
dic = {}

for i in range(M + 1):
    if nxt in dic:
        loop_st = dic[nxt]
        loop_ed = i - 1
        break

    lst.append(nxt)
    dic[nxt] = i

    nxt = (nxt ** 2) % M


v = N - loop_st
q, r = divmod(v, loop_ed - loop_st + 1)

pre_sum = sum(lst[:loop_st])
loop_sum = q * sum(lst[loop_st:])
post_sum = sum(lst[loop_st:loop_st + r])
print(pre_sum + loop_sum + post_sum)
Buggy code:
n, x, m = map(int,input().split())
lst = [0 for i in range(m)]
lst2 = [x]
i = 2
lst[x] = 1
while True:
    if (i > n):
        break
    x = x**2%m
    if (lst[x] == 0):
        lst[x] = i
        lst2.append(lst2[i - 2] + x)
        i = i + 1
    else:
        lst2.append(lst2[i - 2] + x)
        break
a = i - lst[x]
b = lst2[i - 1] - lst2[i - 1 - a]
i = i - 1
c = (n - i)//a
d = (n - i)%a
ans = lst2[i - 1] + b*c + lst2[i - 1 - a + d] - lst2[i - 1 - a]
print(ans)


Fixed code:
n, x, m = map(int,input().split())
lst = [0 for i in range(m)]
lst2 = [x]
i = 2
lst[x] = 1
c = 0
while True:
    if (i > n):
        break
    x = x**2%m
    if (lst[x] == 0):
        lst[x] = i
        lst2.append(lst2[i - 2] + x)
        i = i + 1
    else:
        lst2.append(lst2[i - 2] + x)
        c = 1
        break
if (c == 1):
    a = i - lst[x]
    b = lst2[i - 1] - lst2[i - 1 - a]

    c = (n - i)//a
    d = (n - i)%a
    ans = lst2[i - 1] + b*c + lst2[i - 1 - a + d] - lst2[i - 1 - a]
    print(ans)

else:
    print(lst2[n - 1])