Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
N,M = map(int,input().split())
A = []
for i in range(N):
  A.append(list(input()))
B = []
for j in range(M):
  B.append(list(input()))
for k in range(N-M+1):
  for l in range(N-M+1):
    cnt = 0
    if B[0][0:M] == A[k][l:l+M]:
      p = k
      q = l
      for m in range(N-M+1):
        if B[m][0:M] == A[p+m][q:q+M]:
          cnt += 1
        if cnt == M:
          print('Yes')
          exit()
print('No')

Fixed submission:
N,M = map(int,input().split())
A = []
for i in range(N):
  A.append(list(input()))
B = []
for j in range(M):
  B.append(list(input()))
for k in range(N-M+1):
  for l in range(N-M+1):
    cnt = 0
    if B[0][0:M] == A[k][l:l+M]:
      p = k
      q = l
      for m in range(M):
        if B[m][0:M] == A[p+m][q:q+M]:
          cnt += 1
        if cnt == M:
          print('Yes')
          exit()
print('No')
Buggy python submission (verdict: Time Limit Exceeded):
s = input()
i = 0
while i <= len(s)-5:
  if len(s)-i >= 7:
    if s[i:i+5] == 'dream':
      if s[i+4:i+6] == 'er':
        i += 7
      else:
        i += 5
    elif s[i:i+5] == 'erase':
      if s[i+5] == 'r':
        i += 6
      else:
        i += 5
  elif len(s)-i == 6:
    if s[i:i+5] == 'erase':
      if s[i+5] == 'r':
        i += 6
      else:
        i += 5
  elif len(s)-i == 5:
    if s[i:i+5] == 'erase':
      i = len(s)
    elif s[i:i+5] == 'dream':
      i = len(s)
    else:
      i = len(s)+1
if i == len(s):
  print('YES')
else:
  print('NO')

Fixed submission:
s = input()
t = s[::-1]
i = 0
k = len(s)
while i <= k-5:
  if k-i >= 7:
    if t[i] != 'r':
      if t[i:i+5] == 'maerd':
        i += 5
      elif t[i:i+5] == 'esare':
        i += 5
      else:
        i = k+1
    else:
      if t[i:i+6] == 'resare':
        i += 6
      elif t[i:i+7] == 'remaerd':
        i += 7
      else:
        i = k+1
  elif k-i == 6:
    if t[i:i+6] == 'resare':
      i = k
    else:
      i = k+1
  else:
    if t[i:i+5] == 'esare':
      i = k
    elif t[i:i+5] == 'maerd':
      i = k
    else:
      i = k+1
if i == k:
  print('YES')
else:
  print('NO')

Buggy python submission (verdict: Time Limit Exceeded):
s = input()
i = 0
t = ''
while i <= len(s)-5:
  if len(s)-i >= 7:
    if s[i:i+5] == 'dream':
      if s[i+4:i+6] == 'er':
        i += 7
        t += 'dreamer'
      else:
        i += 5
        t += 'dream'
    elif s[i:i+5] == 'erase':
      if s[i+5] == 'r':
        i += 6
        t += 'eraser'
      else:
        i += 5
        t += 'erase'
  elif len(s)-i == 6:
    if s[i:i+5] == 'erase':
      if s[i+5] == 'r':
        i += 6
        t += 'eraser'
      else:
        i += 5
        t += 'erase'
  elif len(s)-i == 5:
    if s[i:i+5] == 'erase':
      i = len(s)
      t += 'erase'
    elif s[i:i+5] == 'dream':
      i = len(s)
      t += 'dream'
    else:
      i = len(s)+1
if i == len(s):
  print('YES')
else:
  print('NO')

Fixed submission:
s = input()
t = s[::-1]
i = 0
k = len(s)
while i <= k-5:
  if k-i >= 7:
    if t[i] != 'r':
      if t[i:i+5] == 'maerd':
        i += 5
      elif t[i:i+5] == 'esare':
        i += 5
      else:
        i = k+1
    else:
      if t[i:i+6] == 'resare':
        i += 6
      elif t[i:i+7] == 'remaerd':
        i += 7
      else:
        i = k+1
  elif k-i == 6:
    if t[i:i+6] == 'resare':
      i = k
    else:
      i = k+1
  else:
    if t[i:i+5] == 'esare':
      i = k
    elif t[i:i+5] == 'maerd':
      i = k
    else:
      i = k+1
if i == k:
  print('YES')
else:
  print('NO')
Buggy python submission (verdict: Runtime Error):
H,W = map(int,input().split())
L = []
A = ['A','B','C','D','E','F','G','H','I','J']
for i in range(H):
  L.append(input().split())
for i in range(H):
  for j in range(W):
    if L[i][j] == 'snuke':
      k = i+1
      l = A[j]
      break
print(l+str(k))

Fixed submission:
H,W = map(int,input().split())
L = []
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']
for i in range(H):
  L.append(input().split())
for i in range(H):
  for j in range(W):
    if L[i][j] == 'snuke':
      k = i+1
      l = A[j]
      break
print(l+str(k))
Buggy python submission (verdict: Runtime Error):
N,A = map(int,input().split())
X = [0]+list(map(int,input().split()))
dp = []
for i in range(N+1):
  K = []
  for j in range(N+1):
    J = [0]*(N*max(X)+1)
    K.append(J)
  dp.append(K)
for j in range(N+1):
  for k in range(N+1):
    for s in range(N*max(X)+1):
      if j >= 1:
        if s < X[j]:
          dp[j][k][s] = dp[j-1][k][s]
        elif s >= X[j] and k >= 1:
          dp[j][k][s] = dp[j-1][k][s]+dp[j-1][k-1][s-X[j]]
        else:
          dp[j][k][s] = 0
      else:
        if k == 0 and s == 0:
          dp[j][k][s] = 1
        else:
          dp[j][k][s] = 0
ans = 0
for i in range(1,N+1):
  ans += dp[N][i][i*A]
print(ans)

Fixed submission:
N,A = map(int,input().split())
X = [0]+list(map(int,input().split()))
dp = []
for i in range(N+1):
  K = []
  for j in range(N+1):
    J = [0]*(N*max(X)+1)
    K.append(J)
  dp.append(K)
for j in range(N+1):
  for k in range(N+1):
    for s in range(N*max(X)+1):
      if j >= 1:
        if s < X[j]:
          dp[j][k][s] = dp[j-1][k][s]
        elif s >= X[j] and k >= 1:
          dp[j][k][s] = dp[j-1][k][s]+dp[j-1][k-1][s-X[j]]
        else:
          dp[j][k][s] = 0
      else:
        if k == 0 and s == 0:
          dp[j][k][s] = 1
        else:
          dp[j][k][s] = 0
ans = 0
for i in range(1,N+1):
  if i*A <= N*max(X):
    ans += dp[N][i][i*A]
print(ans)

Buggy python submission (verdict: Runtime Error):
N,A = map(int,input().split())
X = [0]+list(map(int,input().split()))
dp = []
for i in range(N+1):
  K = []
  for j in range(N+1):
    J = [0]*(N*max(X)+1)
    K.append(J)
  dp.append(K)
for j in range(N+1):
  for k in range(N+1):
    for s in range(N*max(X)+1):
      if j >= 1:
        if s < X[j]:
          dp[j][k][s] = dp[j-1][k][s]
        elif s >= X[j] and k >= 1:
          dp[j][k][s] = dp[j-1][k][s]+dp[j-1][k-1][s-X[j]]
        else:
          dp[j][k][s] = 0
      else:
        if k == 0 and s == 0:
          dp[j][k][s] = 1
        else:
          dp[j][k][s] = 0
ans = 0
for i in range(N):
  ans += dp[N][i][i*A]
print(ans)

Fixed submission:
N,A = map(int,input().split())
X = [0]+list(map(int,input().split()))
dp = []
for i in range(N+1):
  K = []
  for j in range(N+1):
    J = [0]*(N*max(X)+1)
    K.append(J)
  dp.append(K)
for j in range(N+1):
  for k in range(N+1):
    for s in range(N*max(X)+1):
      if j >= 1:
        if s < X[j]:
          dp[j][k][s] = dp[j-1][k][s]
        elif s >= X[j] and k >= 1:
          dp[j][k][s] = dp[j-1][k][s]+dp[j-1][k-1][s-X[j]]
        else:
          dp[j][k][s] = 0
      else:
        if k == 0 and s == 0:
          dp[j][k][s] = 1
        else:
          dp[j][k][s] = 0
ans = 0
for i in range(1,N+1):
  if i*A <= N*max(X):
    ans += dp[N][i][i*A]
print(ans)
Buggy python submission (verdict: Runtime Error):
P = list(input().split())
if (P.count('5') == 2 and P.count('7') == 1):
  print('YES')
else:
  prit('NO')

Fixed submission:
P = list(input().split())
if (P.count('5') == 2 and P.count('7') == 1):
  print('YES')
else:
  print('NO')
Buggy python submission (verdict: Runtime Error):
n, m, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
dp = [0] * k
aidx = 0
bidx = 0
ans = 0
time = 0
while True:
    if aidx < n and bidx < m:
        if a[aidx] < b[bidx]:
            time += a[aidx]
            if time > k:
                break
            aidx += 1
            ans += 1
        else:
            time += b[bidx]
            if time > k:
                break
            bidx += 1
            ans += 1
    elif aidx < n:
        time += a[aidx]
        if time > k:
            break
        ans += 1
        aidx += 1
    elif bidx < m:
        time += b[bidx]
        if time > k:
            break
        ans += 1
        bidx += 1
    else:
        break
print(ans)

Fixed submission:
n, m, k = map(int, input().split())
a = [0] + list(map(int, input().split()))
b = [0] + list(map(int, input().split()))
A = [0] * (n+1)
B = [0] * (m+1)
for i in range(1, n+1):
    A[i] = A[i-1] + a[i]
for i in range(1, m+1):
    B[i] = B[i-1] + b[i]
ans = 0
j = m
for i in range(n+1):
    while j >= 0:
        if A[i] + B[j] <= k:
            ans = max(ans, i + j)
            break
        else:
            j -= 1
print(ans)
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
if a[0] == 1:
    if a[1] != 1:
        print(1)
    else:
        print(0)
    exit()
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
if n == 1:
    print(1)
    exit()
if a[0] == 1:
    if a[1] != 1:
        print(1)
    else:
        print(0)
    exit()
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
if n == 1:
    print(1)
    exit()
if a[0] == 1:
    if a[1] != 1:
        print(1)
    else:
        print(0)
    exit()
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = list(map(int, input().split()))
a.sort()
ans = 0
for i in range(n):
    flag = True
    for j in range(i):
        if a[j] > a[i] // 2:
            break
        if a[i] % a[j] == 0:
            flag = False
            break
    if flag:
        if i < n - 1 and a[i] == a[i+1]:
            continue
        if i > 0 and a[i] == a[i-1]:
            continue
        ans += 1
print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
if n == 1:
    print(1)
    exit()
if a[0] == 1:
    if a[1] != 1:
        print(1)
    else:
        print(0)
    exit()
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)

Buggy python submission (verdict: Runtime Error):
import math
n = int(input())
a = list(map(int, input().split()))
a.sort()
ans = 0
for i in range(n):
    flag = True
    for j in range(i):
        if a[i] % a[j] == 0:
            flag = False
            break
    if flag:
        ans += 1
if a[0] == a[1]:
    ans -= 1
print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a.sort()
cnt = [0 for _ in range(10**6+5)]
ans = 0
if n == 1:
    print(1)
    exit()
if a[0] == 1:
    if a[1] != 1:
        print(1)
    else:
        print(0)
    exit()
for x in a:
    for i in range(x, 10**6+5, x):
        cnt[i] += 1
for x in a:
    if cnt[x] == 1:
        ans += 1
print(ans)
Buggy python submission (verdict: Runtime Error):
import numpy as np
a, b, h, m = map(int, input().split())
h += m/60
dif = abs(h - m)
theta = dif / 6 * np.pi
ans = np.sqrt(a**2+b**2-2*a*b*np.cos(theta))
print(ans)

Fixed submission:
import math
a, b, h, m = map(int, input().split())
h += m/60
dif = abs(h - m/5)
theta = dif / 6 * math.pi
ans = math.sqrt(a**2+b**2-2*a*b*math.cos(theta))
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
import math
k = int(input())
ans = 0
for a in range(1, k+1):
  for b in range(1, k+1):
    for c in range(1, k+1):
      ans += math.gcd(a, math.gcd(b, c))
print(ans)


Fixed submission:
import math
k = int(input())
ans = 0
for a in range(1, k+1):
  for b in range(1, k+1):
    for c in range(1, k+1):
      ans += math.gcd(a, math.gcd(b, c))
print(ans)
Buggy python submission (verdict: Runtime Error):
import math
x = int(input())
if x % 2 == 0:
  n += 1
else:
  n += 2
while True:
  isPrime = True
  for i in range(2, int(math.sqrt(n))):
    if n % i == 0:
      isPrime = False
      break
  if isPrime:
    print(n)
    break
  n += 2

Fixed submission:
import math
x = int(input())
n = x
while True:
  isPrime = True
  for i in range(2, int(math.sqrt(n))):
    if n % i == 0:
      isPrime = False
      break
  if isPrime:
    print(n)
    break
  n += 1

Buggy python submission (verdict: Runtime Error):
x = int(input())
n = x
while True:
  isPrime = True
  for i in range(2, int(sqrt(n))):
    if n % i == 0:
      isPrime = False
      break
  if isPrime:
    print(n)
    break
  if n % 2 == 0:
    n += 1
  else:
    n += 2

Fixed submission:
import math
x = int(input())
n = x
while True:
  isPrime = True
  for i in range(2, int(math.sqrt(n))):
    if n % i == 0:
      isPrime = False
      break
  if isPrime:
    print(n)
    break
  n += 1
Buggy python submission (verdict: Runtime Error):
import math

A, B, C, D = list(map(int, input().split()))

def f(X, C, D):
    return int(X // C) + int(X // D) - int(X // ((C * D ) / math.gcd(C, D)))

ans = int((B - A + 1) - f(B, C, D) + f(A, C, D))

print(ans)

Fixed submission:
from math import gcd, ceil
a, b, c, d = map(int, input().split())

def f(s, x, y):
    lcm = x * y // gcd(x, y)
    ret = s // x + s // y - s // lcm
    return ret

print(b-a+1-f(b, c, d)+f(a-1, c, d))

Buggy python submission (verdict: Runtime Error):
import math

A, B, C, D = list(map(int, input().split()))

def f(X, C, D):
    return int(X // C) + int(X // D) - int(X // ((C * D ) / math.gcd(C, D)))

ans = int((B - A + 1) - f(B, C, D) + f(A, C, D))

print("{}".format(ans, int))

Fixed submission:
from math import gcd, ceil
a, b, c, d = map(int, input().split())

def f(s, x, y):
    lcm = x * y // gcd(x, y)
    ret = s // x + s // y - s // lcm
    return ret

print(b-a+1-f(b, c, d)+f(a-1, c, d))
Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
h, w = map(int, input().split())
S = [list(input()) for _ in range(h)]
L = np.zeros((h, w), dtype=int)
for i in range(h):
    for j in range(w):
        if j == 0 and S[i][j] != '#':
            L[i, j] = 1
        elif S[i][j] != '#':
            L[i, j] = L[i, j-1] + 1
R = np.zeros((h, w), dtype=int)
for i in range(h):
    for j in range(w-1, -1, -1):
        if j == w-1 and S[i][j] != '#':
            R[i, j] = 1
        elif S[i][j] != '#':
            R[i, j] = R[i, j+1] + 1
U = np.zeros((h, w), dtype=int)
for j in range(w):
    for i in range(h):
        if i == 0 and S[i][j] != '#':
            U[i, j] = 1
        elif S[i][j] != '#':
            U[i, j] = U[i-1, j] + 1
D = np.zeros((h, w), dtype=int)
for j in range(w):
    for i in range(h-1, -1, -1):
        if i == h-1 and S[i][j] != '#':
            D[i, j] = 1
        elif S[i][j] != '#':
            D[i, j] = D[i+1, j] + 1
ans = -1
for i in range(h):
    for j in range(w):
        ans = max(ans, L[i,j]+R[i,j]+U[i,j]+D[i,j]-3)
print(ans)

Fixed submission:
h, w = map(int, input().split())
S = [list(input()) for _ in range(h)]
L = [[0]*w for _ in range(h)]
for i in range(h):
    for j in range(w):
        if j == 0 and S[i][j] != '#':
            L[i][j] = 1
        elif S[i][j] != '#':
            L[i][j] = L[i][j-1] + 1
R = [[0]*w for _ in range(h)]
for i in range(h):
    for j in range(w-1, -1, -1):
        if j == w-1 and S[i][j] != '#':
            R[i][j] = 1
        elif S[i][j] != '#':
            R[i][j] = R[i][j+1] + 1
U = [[0]*w for _ in range(h)]
for j in range(w):
    for i in range(h):
        if i == 0 and S[i][j] != '#':
            U[i][j] = 1
        elif S[i][j] != '#':
            U[i][j] = U[i-1][j] + 1
D = [[0]*w for _ in range(h)]
for j in range(w):
    for i in range(h-1, -1, -1):
        if i == h-1 and S[i][j] != '#':
            D[i][j] = 1
        elif S[i][j] != '#':
            D[i][j] = D[i+1][j] + 1
ans = -1
for i in range(h):
    for j in range(w):
        ans = max(ans, L[i][j]+R[i][j]+U[i][j]+D[i][j]-3)
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
s = list(input())
flag = True
ans = 0
while flag:
    flag = False
    if len(s) <= 1:
        break
    for i in range(len(s)-1):
        if s[i] == '0' and s[i+1] == '1' or s[i] == '1' and s[i+1] == '0':
            del s[i]
            del s[i]
            ans += 2
            flag = True
            break
print(ans)

Fixed submission:
s = input()
print(2*min(s.count('0'),s.count('1')))
Buggy python submission (verdict: Runtime Error):
n = int(input())
l = list(map(int, input().split()))
tot = sum(l)
flag = True:
for l_i in l:
  if 2 * l_i >= tot:
    flag = False
    break
if flag:
  print('Yes')
else:
  print('No')

Fixed submission:
n = int(input())
l = list(map(int, input().split()))
tot = sum(l)
flag = True
for l_i in l:
  if 2 * l_i >= tot:
    flag = False
    break
if flag:
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())
h = [0] + list(map(int, input().split()))
dp = [10**10 for i in range(N+1)]
dp[0] = dp[1] = 0
for i in range(1, N+1):
    for k in range(1, K+1):
        if i + k <= N:
            dp[i+k] = min(dp[i+k], dp[i]+abs(h[i] - h[i+k]))
print(dp[N])

Fixed submission:
N, K = map(int, input().split())
h = [0] + list(map(int, input().split()))
dp = [10**10] * (N+1)
dp[0] = dp[1] = 0
for i in range(1, N+1):
    for k in range(1, K+1):
        if i + k <= N:
            dp[i+k] = min(dp[i+k], dp[i]+abs(h[i] - h[i+k]))
print(dp[N])
Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
N, W = map(int, input().split())
w = [0] * N
v = [0] * N
for i in range(N):
    w[i], v[i] = map(int, input().split())
dp = np.zeros((N+1, W+1), dtype=np.int)
for i in range(N):
    for sum_w in range(W+1):
        if sum_w - w[i] >= 0:
            dp[i+1,sum_w] = max(dp[i+1,sum_w], dp[i][sum_w-w[i]] + v[i])
        dp[i+1,sum_w] = max(dp[i+1,sum_w], dp[i][sum_w])
print(dp[N][W])

Fixed submission:
N, W = map(int, input().split())
w = [0] * N
v = [0] * N
for i in range(N):
    w[i], v[i] = map(int, input().split())
dp = [[0] * (W+1) for _ in range(N+1)]
for i in range(N):
    for sum_w in range(W+1):
        if sum_w - w[i] >= 0:
            dp[i+1][sum_w] = max(dp[i+1][sum_w], dp[i][sum_w-w[i]] + v[i])
        dp[i+1][sum_w] = max(dp[i+1][sum_w], dp[i][sum_w])
print(dp[N][W])
Buggy python submission (verdict: Time Limit Exceeded):
import math
N = int(input())
for n in range(int(math.sqrt(N)), N+1):
    if N % n == 0:
        print(int(math.log10(n)) + 1)
        exit()
print(int(math.log10(N)))

Fixed submission:
import math
N = int(input())
ans = int(math.log10(N))
for n in range(1, int(math.sqrt(N))+1):
    if N % n == 0:
        ans = int(math.log10(N // n)) + 1
print(ans)
Buggy python submission (verdict: Runtime Error):
import numpy as np
MOD = 1000000007
n = int(input())

cnt = np.ones(n+1)

for i in range(2, n+1):
    m = i
    for j in range(2, i+1):
        while m % j == 0:
            m = m / j
            cnt[j] += 1
ans = 1
for i in range(2, n+1):
    ans = (ans * cnt[i]) % MOD
print(int(ans))

Fixed submission:
import numpy as np
MOD = 1000000007
n = int(input())

cnt = np.ones(n+1)

for i in range(2, n+1):
    m = i
    for j in range(2, i+1):
        while m % j == 0:
            m = m / j
            cnt[j] += 1
ans = 1
for i in range(2, n+1):
    ans = (ans * cnt[i]) % MOD
print(int(ans))
Buggy python submission (verdict: Time Limit Exceeded):
import sys
sys.setrecursionlimit(700000)

def s_in():
    return input()

def n_in():
    return int(input())

def l_in():
    return list(map(int, input().split()))

def print_l(l):
    print(' '.join(map(str, l)))

class Interval():
    def __init__(self, li):
        self.li = li
        self.n = len(li)
        self.sum_li = [li[0]]
        for i in range(1, self.n):
            self.sum_li.append(self.sum_li[i-1] + li[i])

    def sum(self, a, b=None):
        if b is None:
            return self.sum(0, a)

        res = self.sum_li[min(self.n-1, b-1)]
        if a > 0:
            res -= self.sum_li[a-1]
        return res

s = s_in()
q = n_in()

d = True

pre = ''
suf = ''

for _ in range(q):
    query = s_in()
    if len(query) == 1:
        d = not d
        pass
    else:
        _, f, c = query.split()
        if d:
            if f == '1':
                pre = c + pre
            else:
                suf = suf + c
        else:
            if f == '1':
                suf = suf + c
            else:
                pre = c + pre


if d:
    print(pre+s+suf)
else:
    print(suf[::-1]+s[::-1]+pre[::-1])


Fixed submission:
import sys
sys.setrecursionlimit(700000)

def s_in():
    return input()

def n_in():
    return int(input())

def l_in():
    return list(map(int, input().split()))

def print_l(l):
    print(' '.join(map(str, l)))

class Interval():
    def __init__(self, li):
        self.li = li
        self.n = len(li)
        self.sum_li = [li[0]]
        for i in range(1, self.n):
            self.sum_li.append(self.sum_li[i-1] + li[i])

    def sum(self, a, b=None):
        if b is None:
            return self.sum(0, a)

        res = self.sum_li[min(self.n-1, b-1)]
        if a > 0:
            res -= self.sum_li[a-1]
        return res

s = s_in()
q = n_in()

d = True

pre = []
suf = []

for _ in range(q):
    query = s_in()
    if len(query) == 1:
        d = not d
    else:
        _, f, c = query.split()
        if d:
            if f == '1':
                pre.append(c)
            else:
                suf.append(c)
        else:
            if f == '1':
                suf.append(c)
            else:
                pre.append(c)

s = "".join(pre[::-1]) + s + "".join(suf)

if d:
    print(s)
else:
    print(s[::-1])
Buggy python submission (verdict: Runtime Error):
import math
N= n_in()
print(math.ceil(N/2))


Fixed submission:
def s_in():
    return input()

def n_in():
    return int(input())

def l_in():
    return list(map(int, input().split()))

class Interval():
    def __init__(self, li):
        self.li = li
        self.n = len(li)
        self.sum_li = [li[0]]
        for i in range(1, self.n):
            self.sum_li.append(self.sum_li[i-1] + li[i])

    def sum(self, a, b=None):
        if b is None:
            return self.sum(0, a)

        res = self.sum_li[min(self.n-1, b-1)]
        if a > 0:
            res -= self.sum_li[a-1]
        return res

import math
N= n_in()
print(math.ceil(N/2))
Buggy python submission (verdict: Time Limit Exceeded):
from collections import Counter

def s_in():
    return input()

def n_in():
    return int(input())

def l_in():
    return list(map(int, input().split()))

class Interval():
    def __init__(self, li):
        self.li = li
        self.n = len(li)
        self.sum_li = [li[0]]
        for i in range(1, self.n):
            self.sum_li.append(self.sum_li[i-1] + li[i])

    def sum(self, a, b=None):
        if b is None:
            return self.sum(0, a)

        res = self.sum_li[min(self.n-1, b-1)]
        if a > 0:
            res -= self.sum_li[a-1]
        return res


N = n_in()
S = []
counter = Counter()

for i in range(N):
    counter[s_in()] += 1


for s in sorted((map(lambda a: a[0], filter(lambda a: a[1] == counter.most_common()[0][1],  counter.most_common())))):
    print(s)



Fixed submission:
from collections import Counter

def s_in():
    return input()

def n_in():
    return int(input())

def l_in():
    return list(map(int, input().split()))

class Interval():
    def __init__(self, li):
        self.li = li
        self.n = len(li)
        self.sum_li = [li[0]]
        for i in range(1, self.n):
            self.sum_li.append(self.sum_li[i-1] + li[i])

    def sum(self, a, b=None):
        if b is None:
            return self.sum(0, a)

        res = self.sum_li[min(self.n-1, b-1)]
        if a > 0:
            res -= self.sum_li[a-1]
        return res


N = n_in()
S = []
counter = Counter()

for i in range(N):
    counter[s_in()] += 1


t = counter.most_common()[0][1]
for s in sorted((map(lambda a: a[0], filter(lambda a: a[1] == t,  counter.most_common())))):
    print(s)