Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
from collections import Counter

N = int(input())
V = list(map(int,input().split()))
even = Counter(V[1::2]).most_common()+([0, 0])
odd = Counter(V[::2]).most_common()+([0, 0])
if(even[0][0] != odd[0][0]):
  print(N-even[0][1]-odd[0][1])
else:
  print(min(N-even[1][1]-odd[0][1], N-even[0][1]-odd[1][1]))


Fixed submission:
N = int(input())
V = list(map(int,input().split()))
even = [0] * (10 ** 5 + 10)
odd = [0] * (10 ** 5 + 10)
for v in V[1::2]:
  even[v] += 1
for v in V[::2]:
  odd[v] += 1
max_even = max(even)
max_odd = max(odd)
if(even.index(max_even) != odd.index(max_odd)):
  print(N - max_even - max_odd)
else:
  even.sort(reverse = True)
  odd.sort(reverse = True)
  print(min(N - even[0] - odd[1], N - even[1] - odd[0]))

Buggy python submission (verdict: Runtime Error):
def ans():
  N = int(input())
  V = list(map(int,input().split()))
  even = [0]*10001
  odd = [0]*10001
  for v in V[1::2]:
    even[v] += 1
  for v in V[::2]:
    odd[v] += 1
  me = max(even)
  mo = max(odd)
  if(even.index(me) != odd.index(mo)):
    print(N - me - mo)
  else:
    even.sort()
    odd.sort()
    print(min(N-even[-1]-odd[-2], N-even[2]-odd[-1]))
ans()

Fixed submission:
N = int(input())
V = list(map(int,input().split()))
even = [0] * (10 ** 5 + 10)
odd = [0] * (10 ** 5 + 10)
for v in V[1::2]:
  even[v] += 1
for v in V[::2]:
  odd[v] += 1
max_even = max(even)
max_odd = max(odd)
if(even.index(max_even) != odd.index(max_odd)):
  print(N - max_even - max_odd)
else:
  even.sort(reverse = True)
  odd.sort(reverse = True)
  print(min(N - even[0] - odd[1], N - even[1] - odd[0]))

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
V = list(map(int,input().split()))
nums = [v for v in V if V.count(v) != int(N/2)]
print(int(len(nums)/2))


Fixed submission:
N = int(input())
V = list(map(int,input().split()))
even = [0] * (10 ** 5 + 10)
odd = [0] * (10 ** 5 + 10)
for v in V[1::2]:
  even[v] += 1
for v in V[::2]:
  odd[v] += 1
max_even = max(even)
max_odd = max(odd)
if(even.index(max_even) != odd.index(max_odd)):
  print(N - max_even - max_odd)
else:
  even.sort(reverse = True)
  odd.sort(reverse = True)
  print(min(N - even[0] - odd[1], N - even[1] - odd[0]))

Buggy python submission (verdict: Runtime Error):
N = int(input())
V = list(map(int,input().split()))
nums = [v for v in V if V.count(x) != int(N/2)]
print(int(len(nums)/2))


Fixed submission:
N = int(input())
V = list(map(int,input().split()))
even = [0] * (10 ** 5 + 10)
odd = [0] * (10 ** 5 + 10)
for v in V[1::2]:
  even[v] += 1
for v in V[::2]:
  odd[v] += 1
max_even = max(even)
max_odd = max(odd)
if(even.index(max_even) != odd.index(max_odd)):
  print(N - max_even - max_odd)
else:
  even.sort(reverse = True)
  odd.sort(reverse = True)
  print(min(N - even[0] - odd[1], N - even[1] - odd[0]))
Buggy python submission (verdict: Runtime Error):
N, X = map(int,input().split())
x = list(map(int,input().split()))
if(N == 1):
  print(x[0] - 1)
  exit()

def gcd(m, n):
  while n:
    m, n = n, m%n
  return m

sub_list = []
for i in range(N-1):
  sub_list.append(abs(x[i] - x[i+1]))

ind = 0
for i in range(1,len(sub_list)):
  ans = gcd(sub_list[ind], sub_list[i])
print(ans)

Fixed submission:
N, X = map(int,input().split())
x = list(map(int,input().split()))

def gcd(m, n):
  while n:
    m, n = n, m%n
  return m

sub_list = []
for i in range(N):
  sub_list.append(abs(x[i] - X))
ans = sub_list[0]
for i in range(N):
  if(sub_list[i]%ans != 0):
    ans = gcd(ans, sub_list[i])
print(ans)
Buggy python submission (verdict: Runtime Error):
K = int(input())

print(K//2)*((K+1)//2)


Fixed submission:
K = int(input())
if(K % 2 == 0):
  print(int(K/2)**2)
else:
  ceil = int((K + 1)/2)
  print(ceil**2 - ceil)
Buggy python submission (verdict: Runtime Error):
H, W = map(int,input().split())
A = [input() for _ in range(N)]

tmp = []
for a in zip(*A):
  if(a.count("#") > 0):
    tmp.append("".join(a))
tmp2 = []
for t in zip(*tmp):
  if(t.count("#") > 0):
    tmp2.append("".join(t))
print("\n".join(tmp2))

Fixed submission:
H, W = map(int,input().split())
HW = [input() for _ in range(H)]
HW = ["".join(hw) for hw in zip(*HW) if hw.count("#") > 0]
HW = ["".join(hw) for hw in zip(*HW) if hw.count("#") > 0]
print("\n".join(HW))
Buggy python submission (verdict: Runtime Error):
N, K = map(int,input().split())
if(N%K == 0)
  print(0)
else:
  print(1)

Fixed submission:
N, K = map(int,input().split())
if(N%K == 0):
  print(0)
else:
  print(1)
Buggy python submission (verdict: Runtime Error):
N = int(input())
ans = ""
while N != 0:
  if(N%2 == 0):
    ans += "0"
  else:
    ans += "1"
    N -= 1
  N //= -2
if(bit == ""):
  ans = ""
print(ans[::-1])  

Fixed submission:
N = int(input())

ans = ""
while N != 0:
  if(N%2 == 0):
    ans += "0"
  else:
    ans += "1"
    N -= 1
  N /= -2
if(ans == ""):
  ans = "0"
print(ans[::-1])
Buggy python submission (verdict: Runtime Error):
#include <iostream>
#include <string>

using namespace std;

#define rep(i, n) for(int i = 0; i < (n); ++i)

int main(){
  string s;
  cin >> s;
  int ans = 0;
  rep(i, 4){
    if (s[i] == '+') ++ans;
    else --ans;
  }
  cout << ans << endl;
}

Fixed submission:
N = input()
print(N.count('+') - N.count('-'))
Buggy python submission (verdict: Runtime Error):
N = input()
n = sum(list(map(int,N)))
if(N%n == 0):
  print("Yes")
else:
  print("No")

Fixed submission:
N = int(input())
digitSum = sum(list(map(int,str(N))))
if(N % digitSum == 0):
  print('Yes')
else:
  print('No')

Buggy python submission (verdict: Runtime Error):
N = input()

def num(n):
  return list(map(int,n))

if(N%sum(num(N)) == 0):
  print("Yes")
else:
  print("No")

Fixed submission:
N = int(input())
digitSum = sum(list(map(int,str(N))))
if(N % digitSum == 0):
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Runtime Error):
N = int(input())

nine = [9**i for i in range(7, 0, -1)]
six = [6**i for i in range(8, 0, -1)]
tmp = {}

def f(n):
  if(n < 6):
    return n
  if(n in tmp):
    return tmp[n]
  
  m = 1e9+7
  if(n >= 9):
    mn = max(x for x in nine if x <= n)
    if(n%mn == 0):
      m = min(m, n//max_nine)
    else:
      m = min(m, f(n-mn)+1)
  ms = max(x for x in six if x <= n)
  if(n%ms == 0):
    m = min(m, n//ms)
  tmp[n] = min(m, f(n-ms)+1)
  return tmp[n]
print(f(N))

Fixed submission:
N = int(input())

ans = 10**9+7
for i in range(N+1):
  j = N-i
  cnt = 0
  while i > 0:
    cnt += i%6
    i //= 6
  while j > 0:
    cnt += j%9
    j //= 9
  ans = min(ans, cnt)
print(ans)
Buggy python submission (verdict: Runtime Error):
a, b = map(int,input().split())
print(max(A+B,A-B,A*B))

Fixed submission:
A, B = map(int,input().split())
add = A + B
sub = A - B
mul = A * B
print(max(add,sub,mul))
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
S = input()

ans = 1e9
for i in range(N):
  tmp = 0
  l, r = S[:i], S[i+1:]
  tmp += l.count("W") + r.count("E")
  ans = min(ans, tmp)
print(ans)

Fixed submission:
N = int(input())
S = input()
w = 0
e = S.count("E")
ans = e + w
for s in S:
  if(s == "E"):
    e -= 1
  else:
    w += 1
  ans = min(ans, e+w)
print(ans)
Buggy python submission (verdict: Runtime Error):
S = input()
K = int(input())

tmp = set()
for i in range(len(S)):
  for j in range(5):
    tmp.add(S[i:i+j])
print(sorted(tmp)[K])

Fixed submission:
S = input()
K = int(input())
tmp = set()
for i in range(len(S)):
  for j in range(5):
    tmp.add(S[i:i+j+1])
print(sorted(tmp)[K-1])
Buggy python submission (verdict: Runtime Error):
A, B, X = map(int,input().split())
if(A <= X and A+B => X):
  print('YES')
else:
  print('NO')

Fixed submission:
A, B, X = map(int,input().split())
if(A <= X and X <= A+B):
  print('YES')
else:
  print('NO')
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
X = list(map(int,input().split()))
mid = []
for i in range(N):
  s = X[:i]+X[i+1:]
  s.sort()
  mid.append(s[(N-1)//2])
for m in mid:
  print(m)

Fixed submission:
N = int(input())
X = list(map(int,input().split()))
sort_X = sorted(X)
l, r = sort_X[N//2-1], sort_X[N//2]
for x in X:
  if(x <= l):
    print(r)
  else:
    print(l)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
X = list(map(int,input().split()))

for i in range(N):
  x = sorted(X[:i]+X[i+1:])
  print(x[len(x)//2])

Fixed submission:
N = int(input())
X = list(map(int,input().split()))
sort_X = sorted(X)
l, r = sort_X[N//2-1], sort_X[N//2]
for x in X:
  if(x <= l):
    print(r)
  else:
    print(l)
Buggy python submission (verdict: Runtime Error):
S = sorted(input())
if(S = "abc"):
  print("Yes")
else:
  print("No")

Fixed submission:
S = sorted(input())
if(S == ['a','b','c']):
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Runtime Error):
#include <iostream>
#include <cstdio>
using namespace std;

int main(){
  int a, b, c, d;
  cin.tie(0);
  ios::sync_with_stdio(false);

  cin >> a >> b >> c >> d;
  cout << min(a,b) + min(c,d) << endl;
  return 0;
}

Fixed submission:
A = int(input())
B = int(input())
C = int(input())
D = int(input())
train = min(A, B)
bus = min(C, D)
print(train + bus)
Buggy python submission (verdict: Runtime Error):
N = int(input())
S = [input() for _ in range(N)]
M = int(input())
T = [input() for _ in range(M)]

tmp_S = {}
for s in S:
  if(s in tmp_S):
    tmp_S[s] += 1
  else:
    tmp_S[s] = 1
for t in T:
  if(t in tmp_S):
    tmp_S[t] -= 1
print(max(0, tmp_S.values()))

Fixed submission:
N = int(input())
Blue = [input() for _ in range(N)]
M = int(input())
Red = [input() for _ in range(M)]
Blue_dic = {b: Blue.count(b) for b in Blue}
for k, v in Blue_dic.items():
  if(k in Red):
    Blue_dic[k] = v - Red.count(k)
print(max(max(Blue_dic.values()),0))
Buggy python submission (verdict: Runtime Error):
#include <bits/stdc++.h>
#include <cstdio>
using namespace std;
int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  string a, b, c;
  cin >> a >> b >> c;
  cout << a[0] << b[1] << c[2];
}

Fixed submission:
arr = [input() for i in range(3)]
print(arr[0][0]+arr[1][1]+arr[2][2])
Buggy python submission (verdict: Runtime Error):
N = int(input())
d = list(set([int(input()) for _ in range(N)])
print(len(d))


Fixed submission:
N = int(input())
d = list(set([int(input()) for _ in range(N)]))
print(len(d))
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = list(map(int,input().split()))
cnt = 0
ind = 1
while A != []:
  A = list(map(lambda x: x - 1, A))
  if(0 in A):
    zero = A.count(0)
    if(zero > ind):
      cnt += abs(zero - ind)
    elif(zero < ind):
      cnt += zero
    A = filter(lambda n: n != 0, A)
  ind += 1
print(cnt)

Fixed submission:
N = int(input())
a = list(map(int,input().split()))

d = {}
for i in range(N):
  if(a[i] not in d):
    d[a[i]] = 1
  else:
    d[a[i]] += 1
cnt = 0
for k, v in d.items():
  if(k > v):
    cnt += v
  elif(k < v):
    cnt += v - k
print(cnt)

Buggy python submission (verdict: Runtime Error):
N = int(input())
a = list(map(int,input().split()))
cnt = 0
ind = 1
while A != []:
  A = list(map(lambda x: x - 1, A))
  if(0 in A):
    zero = A.count(0)
    if(zero > ind):
      cnt += abs(zero - ind)
    elif(zero < ind):
      cnt += zero
    A = filter(lambda n: n != 0, A)
  ind += 1
print(cnt)

Fixed submission:
N = int(input())
a = list(map(int,input().split()))

d = {}
for i in range(N):
  if(a[i] not in d):
    d[a[i]] = 1
  else:
    d[a[i]] += 1
cnt = 0
for k, v in d.items():
  if(k > v):
    cnt += v
  elif(k < v):
    cnt += v - k
print(cnt)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = list(map(int,input().split()))

cnt = 0
ind = 1
while A != []:
  A = list(map(lambda x: x - 1, A))
  if(0 in A):
    zero = A.count(0)
    if(zero > ind):
      cnt += abs(zero - ind)
    elif(zero < ind):
      cnt += zero
    for _ in range(zero):
      A.remove(0)
  ind += 1
print(cnt)

Fixed submission:
N = int(input())
a = list(map(int,input().split()))

d = {}
for i in range(N):
  if(a[i] not in d):
    d[a[i]] = 1
  else:
    d[a[i]] += 1
cnt = 0
for k, v in d.items():
  if(k > v):
    cnt += v
  elif(k < v):
    cnt += v - k
print(cnt)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = list(map(int,input().split()))
check = list(set(A))
num = 0
for c in check:
  cnt = A.count(c)
  if c < cnt:
    num += abs(cnt- c)
  elif c > cnt:
    num += cnt
print(num)

Fixed submission:
N = int(input())
a = list(map(int,input().split()))

d = {}
for i in range(N):
  if(a[i] not in d):
    d[a[i]] = 1
  else:
    d[a[i]] += 1
cnt = 0
for k, v in d.items():
  if(k > v):
    cnt += v
  elif(k < v):
    cnt += v - k
print(cnt)
Buggy python submission (verdict: Runtime Error):
N = input()
if(N%sum(list(map(int,N))) == 0):
  print("Yes")
else:
  print("No")

Fixed submission:
N = input()
cnt = 0
for n in N:
  cnt += int(n)
if(int(N)%cnt == 0):
  print("Yes")
else:
  print("No")
Buggy python submission (verdict: Runtime Error):
import itertools
A, B, C, D = list(input())

op = ['+','-']

for a,b,c in itertools.product(op,op,op):
  x = A + op1 + B + op2 + C + op3 + D
  if(eval(x) == 7):
    print(x + "=7")
    break

Fixed submission:
import itertools
A, B, C, D = list(input())

op = ['+','-']

for op1,op2,op3 in itertools.product(op,op,op):
  x = A + op1 + B + op2 + C + op3 + D
  if(eval(x) == 7):
    print(x + "=7")
    break
Buggy python submission (verdict: Runtime Error):
x = int(N**(0.5))
if(N%x == 0):
  print(N)
else:
  print((int(N**(0.5))-1)**2)

Fixed submission:
N = int(input())

x = N**(0.5)
if(N%x == 0):
  print(N)
else:
  print(int(x)**2)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = sorted(list(map(int,input().split())))
B = sorted(list(map(int,input().split())))
C = sorted(list(map(int,input().split())))
cnt = 0
for i in range(N):
  l, r = 0, 0
  for j in range(N):
    k = i - j
    if(A[j] < B[i]):
      l += 1
    if(B[i] < C[k]):
      r += 1
  cnt += l*r
print(cnt)


Fixed submission:
N = int(input())
A = sorted(list(map(int,input().split())))
B = sorted(list(map(int,input().split())))
C = sorted(list(map(int,input().split())))

a = 0
c = 0
ans = 0
for b in B:
  while a < N and A[a] < b:
    a += 1
  while c < N and C[c] <= b:
    c += 1
  ans += a * (N - c)
print(ans)
Buggy python submission (verdict: Runtime Error):
S = input()
T = input()

len_S = len(S)
len_T = len(T)
for i in range(len_S-len_T, -1, -1):
  if not all(s in ['?', t] for s, t in zip(S[i:i+len_T], T)):
    continue
  print((S[:i] + t + S[i+len_T:]).replace('?','a'))
  exit()
print("UNRESTORABLE")


Fixed submission:
S = input()
T = input()

len_S = len(S)
len_T = len(T)
for i in range(len_S-len_T, -1, -1):
  if not all(s in ['?', t] for s, t in zip(S[i:i+len_T], T)):
    continue
  print((S[:i] + T + S[i+len_T:]).replace('?','a'))
  exit()
print("UNRESTORABLE")
Buggy python submission (verdict: Runtime Error):
N, M = map(int,input().split())

v = list(range(1,M+1))
edges = [[] for _ in range(M+1)]
for _ in range(M):
  a, b = map(int,input().split())
  edges[a] += [b]
  edges[b] += [a]

def dfs(v, e):
  for x in v:
    if(len(e[x]) == 1):
      t = e[x][0]
      e[x] = []
      e[t].remove(x)
      v.remove(x)
      return dfs(v, e)+1
  return 0

print(dfs(v, edges))

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

v = [i for i in range(1,N+1)]
e = [[]]*(N+1)
for i in range(M):
  a, b = map(int,input().split())
  e[a] = e[a] + [b]
  e[b] = e[b] + [a]

def dfs(v, e):
  for num in v:
    if(len(e[num]) == 1):
      tmp_num = e[num][0]
      v.remove(num)
      e[num] = []
      e[tmp_num].remove(num)
      #print(e,v)
      return dfs(v, e)+1
  return 0
print(dfs(v, e))

Buggy python submission (verdict: Runtime Error):
N, M = map(int,input().split())

v = list(range(1,M+1))
edges = [[] for _ in range(M+1)]
for _ in range(M):
  a, b = map(int,input().split())
  edges[a] += [b]
  edges[b] += [a]

def f(v, e):
  for x in v:
    if(len(e[x]) == 1):
      t = e[x][0]
      e[x] = []
      e[t].remove(x)
      v.remove(x)
      return f(v, e)+1
  return 0

print(dfs(v, edges))

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

v = [i for i in range(1,N+1)]
e = [[]]*(N+1)
for i in range(M):
  a, b = map(int,input().split())
  e[a] = e[a] + [b]
  e[b] = e[b] + [a]

def dfs(v, e):
  for num in v:
    if(len(e[num]) == 1):
      tmp_num = e[num][0]
      v.remove(num)
      e[num] = []
      e[tmp_num].remove(num)
      #print(e,v)
      return dfs(v, e)+1
  return 0
print(dfs(v, e))

Buggy python submission (verdict: Runtime Error):
N, M = map(int,input().split())

v = list(range(1,M+1))
edges = [[] for _ in range(M+1)]
for _ in range(M):
  a, b = map(int,input().split())
  edges[a] += [b]
  edges[b] += [a]

def dfs(v, e):
  for x in v:
    if(len(e[x]) == 1):
      t = e[x][0]
      e[x] = []
      e[t].remove(x)
      v.remove(x)
      return dfs(v, e)+1
  return 0

print(f(v, edges))

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

v = [i for i in range(1,N+1)]
e = [[]]*(N+1)
for i in range(M):
  a, b = map(int,input().split())
  e[a] = e[a] + [b]
  e[b] = e[b] + [a]

def dfs(v, e):
  for num in v:
    if(len(e[num]) == 1):
      tmp_num = e[num][0]
      v.remove(num)
      e[num] = []
      e[tmp_num].remove(num)
      #print(e,v)
      return dfs(v, e)+1
  return 0
print(dfs(v, e))
Buggy python submission (verdict: Time Limit Exceeded):
def main():
  n = int(input())
  D = list(map(int,input().split()))
  m = int(input())
  T = list(map(int,input().split()))
  tmp = []
  for t in T:
    if t in D:
      D.remove(t)
      tmp.append(t)
  if T == tmp:
    print("YES")
  else:
    print("NO")

main()

Fixed submission:
def main():
  from collections import Counter
  n = int(input())
  D = list(map(int,input().split()))
  m = int(input())
  T = list(map(int,input().split()))
  
  d = dict(Counter(D))
  ans = "YES"
  for t in T:
    try:
      if d[t] - 1 >= 0:
        d[t] -= 1
      else:
        ans = "NO"
    except:
      ans = "NO"

  print(ans)

main()
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
memo = []
for i in range(N):
  A = int(input())
  if(A in memo):
    memo.remove(A)
  else:
    memo.append(A)
print(len(memo))

Fixed submission:
N = int(input())
A = [input() for _ in range(N)]

memo = {}
for a in A:
  if(a not in memo):
    memo[a] = 0
  else:
    memo.pop(a)
print(len(memo))

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = [int(input()) for _ in range(N)]

memo = []
for a in A:
  if(a not in memo):
    memo.append(a)
  else:
    memo.remove(a)
print(len(memo))


Fixed submission:
N = int(input())
A = [input() for _ in range(N)]

memo = {}
for a in A:
  if(a not in memo):
    memo[a] = 0
  else:
    memo.pop(a)
print(len(memo))

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = [int(input()) for _ in range(N)]

a = list(set(A))
d = {}
for aa in a:
  if(A.count(aa)%2 == 1):
    d[aa] = A.count(aa)
print(len(d))

"""
memo = []
for i in range(N):
  A = int(input())
  if(A not in memo):
    memo.append(A)
  else:
    memo.remove(A)
print(len(memo))
"""

Fixed submission:
N = int(input())
A = [input() for _ in range(N)]

memo = {}
for a in A:
  if(a not in memo):
    memo[a] = 0
  else:
    memo.pop(a)
print(len(memo))

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())

memo = []
for i in range(N):
  A = int(input())
  if(A not in memo):
    memo.append(A)
  else:
    memo.remove(A)
print(len(memo))

Fixed submission:
N = int(input())
A = [input() for _ in range(N)]

memo = {}
for a in A:
  if(a not in memo):
    memo[a] = 0
  else:
    memo.pop(a)
print(len(memo))
Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
result = [0]*(1000000001)
for a in A:
  result[a] += 1
  result[a-1] += 1
  result[a+1] += 1
print(max(result))

Fixed submission:
N = int(input())
A = list(map(int,input().split()))

nums = [0]*(10**5+10)
for a in A:
  nums[a] += 1
  nums[a-1] += 1
  nums[a+1] += 1
print(max(nums))
Buggy python submission (verdict: Runtime Error):
S = input()
ans = "abcdefghijklmnopqrstuvwxyz"
for s in S:
  ans = ans.replace(s, "")
print(ans[0])

Fixed submission:
S = sorted(input())
dic = "abcdefghijklmnopqrstuvwxyz"
for s in S:
  if(s in dic):
    dic = dic.replace(s,'')
if(dic != ''):
  print(dic[0])
else:
  print("None")
Buggy python submission (verdict: Runtime Error):
A, B, C, D = map(int,input().split())
x = max(A, C)
y = min(B, D)
if(y-x > 0):
  print(y - x)
else:
  print(0)


Fixed submission:
N = input()
if(N == N[::-1]):
  print("Yes")
else:
  print("No")

Buggy python submission (verdict: Runtime Error):
A, B, C, D = map(int,input().split())
x = max(A, B)
y = min(C, D)
if(y-x > 0):
  print(y - x)
else:
  print(0)


Fixed submission:
N = input()
if(N == N[::-1]):
  print("Yes")
else:
  print("No")
Buggy python submission (verdict: Runtime Error):
N = int(input())
T = [int(input()) for _ in range(N)]

import math
def lcm(x, y):
  return (x*y) // math.gcd(x, y)

result = []
for i in range(N):
  try:
    result.append(lcm(T[i], T[i+1]))
  except:
    break
print(max(result))

Fixed submission:
N = int(input())

def gcd(a, b):
  while b:
    a, b = b, a%b
  return(a)

result = []
x = 1
for i in range(N):
  T = int(input())
  x = x * T // gcd(x, T)
  result.append(x)
print(max(result))
Buggy python submission (verdict: Runtime Error):
N = int(input())

two_ad = 0
four_ad = 0
other = 0
for _ in range(N):
  a = int(input())
  if a % 4 == 0 and a % 2 == 0:
    four_ad += 1
  elif a % 4 == 0:
    four_ad += 1
  elif a % 2 == 0:
    two_ad += 1
  else:
    other += 1

if not two_ad and not four_ad:
  ans = "No"
elif not two_ad:
  if other == four_ad + 1 or four_ad > other:
    ans = "Yes"
  else:
    ans = "No"
elif not four_ad:
  ans = "No"
elif not other:
  ans = "Yes"
elif four_ad == other == two_ad:
  ans = "Yes"
else:
  ans = "No"
print(ans)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
two_ad = 0
four_ad = 0
other = 0
for a in A:
  if a % 4 == 0:
    four_ad += 1
  elif a % 2 == 0:
    two_ad += 1
  else:
    other += 1

ans = "No"
if four_ad >= other:
  ans = "Yes"
elif four_ad == other - 1 and not two_ad:
  ans = "Yes"
print(ans)
Buggy python submission (verdict: Runtime Error):
N, M = map(int,input().split())

e = [0]*N
for _ in range(M):
  a, b = map(int,input().split())
  if(a == 1):
    e[a] += 1
  elif(b == N):
    e[b] += 1
if(2 in e):
  print("POSSIBLE")
else:
  print("IMPOSSIBLE")

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

tmp = [0]*N
check = [0]*N
for _ in range(M):
  a, b = map(int,input().split())
  if(a == 1):
    tmp[b] += 1
  elif(b == N):
    check[a] += 1

for i in range(len(tmp)):
  if(check[i] == 1 and tmp[i] == 1):
    print("POSSIBLE")
    break
else:
  print("IMPOSSIBLE")

"""
tmp = [0]*N
for _ in range(M):
  a, b = map(int,input().split())
  if(a == 1):
    tmp[b] += 1
  elif(b == N):
    tmp[a] += 1

if(2 in tmp):
  print("POSSIBLE")
else:
  print("IMPOSSIBLE")
"""
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = list(map(int,input().split()))
num = []
for i in range(1,N):
  num.append(abs(sum(A[:i]) - sum(A[i:])))
print(min(num))


Fixed submission:
N = int(input())
A = list(map(int,input().split()))
X = sum(A)
x = 0
result = []
for i in range(N-1):
  x += A[i]
  result.append(abs(X - 2*x))
print(min(result))
Buggy python submission (verdict: Runtime Error):
X, A, B = map(int,input().split())
m = B - A
if(m <= 0):
  print("delicious")
elif(X => m):
  print("safe")
else:
  print("dangerous")

Fixed submission:
X, A, B = map(int,input().split())
m = B - A
if(m <= 0):
  print("delicious")
elif(m <= X):
  print("safe")
else:
  print("dangerous")