Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
import numpy as np
hi = np.zeros((5000,60),np.int64)
hi[0,0]=1
n,a = [int(it) for it in input().split()]
li = [int(it) for it in input().split()]
for i in li:
  　hi_ = hi.copy()
    hi[i:-1,1:]+=hi_[:-1-i,:-1]
s = 0
for i in range(n):
  s+=hi[(i+1)*a,i+1]
print (s)


Fixed submission:
import numpy as np
hi = np.zeros((5000,60),np.int64)
hi[0,0]=1
n,a = [int(it) for it in input().split()]
li = [int(it) for it in input().split()]
for i in li:
    hi_ = hi.copy()
    hi[i:-1,1:]+=hi_[:-1-i,:-1]
s = 0
for i in range(n):
  s+=hi[(i+1)*a,i+1]
print (s)

Buggy python submission (verdict: Runtime Error):
import numpy as np
hi = np.zeros((5000,60),np.int64)
hi[0,0]=1
n,a = [int(it) for it in input().split()]
li = [int(it) for it in input().split()]
for i in li:
  　hi_ = hi.copy()
    hi[i:-1,1:]+=hi_[:-1-i,:-1]
s = 0
for i in range(n):
  s+=hi[(i+1)*a,i+1]
print (s)


Fixed submission:
import numpy as np
hi = np.zeros((5000,60),np.int64)
hi[0,0]=1
n,a = [int(it) for it in input().split()]
li = [int(it) for it in input().split()]
for i in li:
    hi_ = hi.copy()
    hi[i:-1,1:]+=hi_[:-1-i,:-1]
s = 0
for i in range(n):
  s+=hi[(i+1)*a,i+1]
print (s)
Buggy python submission (verdict: Time Limit Exceeded):
"""
map(int,input().split())

"""
N,K = map(int,input().split())
S = input()
s = []
for i in range(0,len(S)):
    s.append(S[i])


Nums = []
now = 1
cnt = 0
for i in range(0,N):
    if(s[i] == str(now)):
        cnt+=1
    else:
        Nums.append(cnt)
        now = 1-now
        cnt = 1

if cnt!=0:
    Nums.append(cnt)

if len(Nums)%2 == 0:
    Nums.append(0)

Add = 2*K + 1
ans = 0
for i in range(0,len(Nums),2):
    tmp = 0
    left = i
    right = min(i + Add , len(Nums))

    for j in range(left,right):
        tmp += Nums[j]
    ans = max(tmp,ans)

print(ans)


Fixed submission:
"""
map(int,input().split())

"""
N,K = map(int,input().split())
S = input()
s = []
for i in range(0,len(S)):
    s.append(S[i])


Nums = []
now = 1
cnt = 0
for i in range(0,N):
    if(s[i] == str(now)):
        cnt+=1
    else:
        Nums.append(cnt)
        now = 1-now
        cnt = 1

if cnt!=0:
    Nums.append(cnt)

if len(Nums)%2 == 0:
    Nums.append(0)

Add = 2*K + 1
ans = 0
W = []

wsm = 0
for i in range(0,len(Nums)):
    wsm = Nums[i] + wsm
    W.append(wsm)

W.append(wsm)
W.append(wsm)

for i in range(0,len(Nums),2):
    tmp = 0
    left = i
    if left == 0:
        left = 1
    right = min(i + Add , len(Nums))
    if left-1<=0:
        tmp = W[right-1]
    else:
        tmp = W[right-1] - W[left-1]
    #print(tmp,left,right)
    ans = max(tmp,ans)
if  N == 1:
    print(1)
else:
    print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
A,B = map(int,input().split())

bit = A
for a in range(A+1,B+1):
  bit = bit ^ a

print(bit)


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

def getXOR(x):
  if x%4 == 0:
    return x
  elif x%4 == 1:
    return 1
  elif x%4 == 2:
    return x+1
  else:
    return 0


print(getXOR(A-1)^getXOR(B))
Buggy python submission (verdict: Runtime Error):
A,B,K = map(int,input().split())

als = []
bls = []

for a in range(1,A):
  if A%a == 0:
    als.append(a)
for b in range(1,B):
  if B%b == 0:
    bls.append(b)

common = []

for a in range(0,len(als)):
  if a in bls:
    common.append(a)

common.sort()
print(common[K-1])


Fixed submission:
A,B,K = map(int,input().split())

als = []
bls = []

for a in range(1,A+1):
  if A%a == 0:
    als.append(a)
for b in range(1,B+1):
  if B%b == 0:
    bls.append(b)

common = []

for a in als:
  if a in bls:
    common.append(a)

common.sort()
print(common[-K])
Buggy python submission (verdict: Runtime Error):
S = input().split("/")

if S[0]>= 2020:
  print("TBD")
elif S[0] == 2019:
  if S[1] >5:
    print("TBD")
  else:
    print("Heisei")
else:
  print("Heisei")

Fixed submission:
S = input().split("/")


if int(S[0])>= 2020:
  print("TBD")
elif int(S[0]) == 2019:
  if int(S[1]) >=5:
    print("TBD")
  else:
    print("Heisei")
else:
  print("Heisei")
Buggy python submission (verdict: Runtime Error):
N = int(input())
Lin = input().split(" ")

Lls = []

for i in range(0,N):
    Lls.append(Lin[i])

Lls.sort(reverse = True)

maxSide = Lls[0]
otherSide = 0
for i in range(1,N):
    otherSide = otherSide + Lls[i]

if maxSide < otherSide:
    print("Yes")
else:
    print("No")


Fixed submission:
N = int(input())
Lin = input().split(" ")

Lls = []

for i in range(0,N):
    Lls.append(int(Lin[i]))

Lls.sort(reverse = True)

maxSide = Lls[0]
otherSide = 0
for i in range(1,N):
    otherSide = otherSide + Lls[i]

if maxSide < otherSide:
    print("Yes")
else:
    print("No")

Buggy python submission (verdict: Runtime Error):
N = int(input())
Lin = input().split(" ")

Lls = []

for i in range(0,N):
    Lls.append(Lin[i])

Lls.sort(reverse = True)

maxSide = Lls[0]
otherSide = 0
for i in range(1,N):
    otherSide = otherSide + Lls[i]

if maxSide < otherSide:
    print("Yes")
other:
    print("No")

Fixed submission:
N = int(input())
Lin = input().split(" ")

Lls = []

for i in range(0,N):
    Lls.append(int(Lin[i]))

Lls.sort(reverse = True)

maxSide = Lls[0]
otherSide = 0
for i in range(1,N):
    otherSide = otherSide + Lls[i]

if maxSide < otherSide:
    print("Yes")
else:
    print("No")
Buggy python submission (verdict: Runtime Error):
D = int(input())
 
if D == 25:
  print(Christmas)
else if D == 24:
  print(Christmas Eve)
else if D == 23:
  print(Christmas Eve Eve)
else if D == 22:
  print(Christmas Eve Eve Eve)

Fixed submission:
#A問題を2回間違えた灰コーダー

D = int(input())
 
if D == 25:
  print("Christmas")
elif D == 24:
  print("Christmas Eve")
elif D == 23:
  print("Christmas Eve Eve")
elif D == 22:
  print("Christmas Eve Eve Eve")

Buggy python submission (verdict: Runtime Error):
D = int(input())

if D == 25:
  print(Christmas)
elif D == 24:
  print(Christmas Eve)
elif D == 23:
  print(Christmas Eve Eve)
elif D == 22:
  print(Christmas Eve Eve Eve)

Fixed submission:
#A問題を2回間違えた灰コーダー

D = int(input())
 
if D == 25:
  print("Christmas")
elif D == 24:
  print("Christmas Eve")
elif D == 23:
  print("Christmas Eve Eve")
elif D == 22:
  print("Christmas Eve Eve Eve")
Buggy python submission (verdict: Runtime Error):
N,K = map(int,input().split())
h =[]
dif = []
for n in range(0,N):
    h.append(int(input()))

h.sort()

m = 10**10

for i in range(0,N-K+1):
    m = min(m,abs(h[i] - h[i+K-1]))

print(m)



Fixed submission:
N = int(input())
pLs=[]
for n in range(0,N):
    pLs.append(int(input()))

pLs.sort(reverse = True)

sm = 0
pLs[0] = int(pLs[0]/2)
for n in range(0,N):
    sm += pLs[n]

print(sm)
Buggy python submission (verdict: Time Limit Exceeded):
N,K = input().split(" ")
N = int(N)
K = int(K)

hList = []
for i in range(0,N):
    hList.append(int(input()))

hList.sort()
tousa = []

for i in range(0,N-1):
    tousa.append(abs(hList[i] - hList[i+1]))

sumList = []

for i in range(0,N-K+1):
    sm = 0
    for j in range(0,K-1):
        sm = tousa[i+j] + sm
    sumList.append(sm)

sumList.sort()
print(sumList[0])


Fixed submission:
N,K = map(int,input().split())
h =[]
dif = []
for n in range(0,N):
    h.append(int(input()))

h.sort()

m = 10**10

for i in range(0,N-K+1):
    m = min(m,abs(h[i] - h[i+K-1]))

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

N,X = map(int,input().split())
x = input().split()
xls = []

for n in range(0,N):
    xls.append(int(x[n]))

xls.append(X)
xls.sort(reverse = True)

tousa = []

for n in range(0,N):
    tousa.append(xls[n]-xls[n+1])

if len(tousa) == 1:
    print(tousa[0])
    exit()
gcd = math.gcd(tousa[0],tousa[1])

for n in range(0,N):
    gcd = math.gcd(gcd,tousa[n])
    
print(gcd)


Fixed submission:
import math

def gcd(a,b):
    while b!=0:
        a,b=b,a%b
    return a


N,X = map(int,input().split())
x = input().split()
xls = []
 
for n in range(0,N):
    xls.append(int(x[n]))
 
xls.append(X)
xls.sort(reverse = True)
 
tousa = []
 
for n in range(0,N):
    tousa.append(xls[n]-xls[n+1])
 
if len(tousa) == 1:
    print(tousa[0])
    exit()
gcdd = gcd(tousa[0],tousa[1])
 
for n in range(0,N):
    gcdd = gcd(gcdd,tousa[n])
    
print(gcdd)
Buggy python submission (verdict: Runtime Error):
N = int(input())

tmp = input().split(" ")

als = [0]*(10**5)

for n in tmp:
    nowNum = int(n)
    als[nowNum - 1] += 1
    als[nowNum] += 1
    als[nowNum + 1] += 1


    
print(max(als))


Fixed submission:
N = int(input())

tmp = input().split(" ")

als = [0]*(10**5 + 10)

for n in tmp:
    nowNum = int(n)
    als[nowNum - 1] += 1
    als[nowNum] += 1
    als[nowNum + 1] += 1


    
print(max(als))
Buggy python submission (verdict: Runtime Error):
li = list(int(input()))
print(int((li[0]*3+li[1])/2))

Fixed submission:
li = list(map(int, input().split()))
print(int((li[0]*3+li[1])/2))
Buggy python submission (verdict: Runtime Error):
a,b,t=list(map(int, list(input().split())))
return int(t/a)*b

Fixed submission:
a,b,t=list(map(int, list(input().split())))
print(int(t/a)*b)
Buggy python submission (verdict: Runtime Error):
a, b, c, d = map(int, input().split())
N = list(range(a, b+1, 1))
t = 0
for n in N:
  if n % c != 0 and n % d != 0:
    t += 1
print(t)

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

s1 = (a-1) // c
s2 = (a-1) // d
s3 = (a-1) // (c*d//math.gcd(c,d))
S = (a-1) - (s1 + s2 -s3)

l1 = b // c
l2 = b // d
l3 = b // (c*d//math.gcd(c,d))
L = b - (l1 + l2 - l3)

print(L-S)

Buggy python submission (verdict: Runtime Error):
a, b, c, d = map(int, input().split())
N = list(range(a, b+1, 1))
t = 0
for n in N:
  if n % c == 0 and n % d == 0:
    t += 1
print(t)

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

s1 = (a-1) // c
s2 = (a-1) // d
s3 = (a-1) // (c*d//math.gcd(c,d))
S = (a-1) - (s1 + s2 -s3)

l1 = b // c
l2 = b // d
l3 = b // (c*d//math.gcd(c,d))
L = b - (l1 + l2 - l3)

print(L-S)
Buggy python submission (verdict: Runtime Error):
k = input().split()
a = k[0]
b = k[1]
c = k[2]
Sum = 0
h = max(k)

Buf = 1
del k[k.index[h]]

for i in k:
    buf = Buf*i

print(int(buf/2))

Fixed submission:
k = input().split()
a = k[0]
b = k[1]
c = k[2]
for i in range(len(k)):
    k[i] = int(k[i])
h = max(k)

Buf = 1
del k[k.index(h)]

for i in k:
    Buf = Buf * int(i)
r = Buf/2
print(int(r))
Buggy python submission (verdict: Runtime Error):
a=""
a=raw_input()
ans=0
for i in range(len(a)-1):
	if a[i]=='9':
		ans=1
if ans==1:
	print 'Yes'
if ans==0:
	print 'No'

Fixed submission:
a=input()
if a/10==9 or a%10==9:
    print "Yes"
else:
    print "No"

Buggy python submission (verdict: Runtime Error):
a=""
a=input()
ans=0
for i in range(len(a)):
	if a[i]=='9':
		ans=1
if ans==1:
	print 'Yes'
if ans==0:
	print 'No'

Fixed submission:
a=input()
if a/10==9 or a%10==9:
    print "Yes"
else:
    print "No"
Buggy python submission (verdict: Runtime Error):
a=input()
if a[0]==a[2]:
    print "Yes"
else:
    print "No"

Fixed submission:
a=""
a=raw_input()
if a[0]==a[2]:
    print "Yes"
else:
    print "No"

Buggy python submission (verdict: Runtime Error):
a=input()
if a[0]==a[2]:
    print "Yes"
else:
    print "No"

Fixed submission:
a=""
a=raw_input()
if a[0]==a[2]:
    print "Yes"
else:
    print "No"
Buggy python submission (verdict: Runtime Error):
import math

entrada = list(map(int,input().split(" ")))

rangoMenor = entrada[0]
rangoMayor = entrada[1]
divisor1 = entrada[2]
divisor2= entrada[3]


multiplo = divisor2*divisor1// math.gcd(divisor1,divisor2)
cantidad = rangoMayor-rangoMenor
repetidos = rangoMayor//multiplo - rangoMenor//multiplo

if rangoMenor%divisor1==0:
	divisibles1 = rangoMayor//divisor1 +1 - rangoMenor//divisor1
else:
	divisibles1 = rangoMayor // divisor1 - rangoMenor//divisor1

divisibles2 = rangoMayor//divisor2 - rangoMenor//divisor2

resultado = cantidad -(divisibles1+divisibles2) +repetidos + 1
print(resultado)

Fixed submission:
import fractions

entrada = list(map(int,input().split(" ")))

rangoMenor = entrada[0]
rangoMayor = entrada[1]
divisor1 = entrada[2]
divisor2= entrada[3]

multiplo = divisor2*divisor1// fractions.gcd(divisor1,divisor2)
cantidad = rangoMayor-rangoMenor
repetidos = rangoMayor//multiplo - rangoMenor//multiplo

if rangoMenor%divisor1==0:
	divisibles1 = rangoMayor//divisor1 +1 - rangoMenor//divisor1
else:
	divisibles1 = rangoMayor // divisor1 - rangoMenor//divisor1

divisibles2 = rangoMayor//divisor2 - rangoMenor//divisor2

resultado = cantidad -(divisibles1+divisibles2) +repetidos + 1
print(resultado)
Buggy python submission (verdict: Runtime Error):
def rec(i, bs, ngs):
    if bs[i] is None:
        if ngs[i]:
            bs[i] = 0
        elif i == 0 or i == 1:
            bs[i] = 1
        else:
            bs[i] = (rec(i-1, bs, ngs) + rec(i-2, bs, ngs)) % 1000000007
    return bs[i]


N, M = map(int, input().split())
ngs = [False] * int(1e5+1)
for _ in range(M):
    ngs[int(input())] = True

bs = [None] * int(1e5+1)
ans = rec(N, bs, ngs)
print(ans)


Fixed submission:
N, M = map(int, input().split())
ngs = [False] * (N+1)
for _ in range(M):
    ngs[int(input())] = True

bs = [1] * (N+1)
for i in range(1, N+1):
    if ngs[i]:
        bs[i] = 0
    elif i == 1:
        bs[i] = 1
    else:
        bs[i] = (bs[i-1] + bs[i-2]) % 1000000007

print(bs[N])
Buggy python submission (verdict: Time Limit Exceeded):
import sys
from heapq import heapify, heapreplace


def main():
    input = sys.stdin.readline
    N, M = map(int, input().split())
    As = list(map(int, input().split()))
    heapify(As)
    BCs = [None] * M
    for i in range(M):
        BCs[i] = list(map(int, input().split()))
    BCs = reversed(sorted(BCs, key=lambda x: x[1]))
    for B, C in BCs:
        for _ in range(B):
            if As[0] < C:
                heapreplace(As, C)
    print(sum(As))


if __name__ == '__main__':
    main()


Fixed submission:
import sys
from heapq import heapify, heapreplace


def main():
    input = sys.stdin.readline
    N, M = map(int, input().split())
    As = list(map(int, input().split()))
    heapify(As)
    BCs = [None] * M
    for i in range(M):
        BCs[i] = list(map(int, input().split()))
    BCs = reversed(sorted(BCs, key=lambda x: x[1]))
    for B, C in BCs:
        for _ in range(B):
            if As[0] >= C:
                print(sum(As))
                sys.exit()
            heapreplace(As, C)
    print(sum(As))


if __name__ == '__main__':
    main()
Buggy python submission (verdict: Time Limit Exceeded):
import sys
from queue import Queue


def main():
    input = sys.stdin.readline
    N = int(input())
    tree = [[] for _ in range(N)]
    for _ in range(N-1):
        u, v, w = map(int, input().split())
        tree[u-1].append([v-1, w])
        tree[v-1].append([u-1, w])

    color = [None] * N
    v_que = Queue()
    v_que.put(0)
    
    c = True
    c_que = Queue()
    c_que.put(c)

    while not v_que.empty():
        v = v_que.get()
        c = c_que.get()
        if color[v] is not None:
            continue
        color[v] = c
        for e in tree[v]:
            v_que.put(e[0])
            c_que.put(c if e[1] % 2 == 0 else not c)

    for c in color:
        print(int(c))


if __name__ == '__main__':
    main()


Fixed submission:
import sys
from queue import Queue


def main():
    input = sys.stdin.readline
    N = int(input())
    tree = [[] for _ in range(N)]
    for _ in range(N-1):
        u, v, w = map(int, input().split())
        tree[u-1].append([v-1, w])
        tree[v-1].append([u-1, w])

    color = [None] * N
    v_que = Queue()
    v_que.put(0)
    
    c = True
    c_que = Queue()
    c_que.put(c)

    while not v_que.empty():
        v = v_que.get()
        c = c_que.get()
        if color[v] is not None:
            continue
        color[v] = c
        for e in tree[v]:
            v_que.put(e[0])
            c_que.put(c if e[1] % 2 == 0 else not c)

    for c in color:
        print(int(c))


if __name__ == '__main__':
    main()
Buggy python submission (verdict: Runtime Error):
import sys
import numpy as np

def get_cum_gcd(N, As):
    cum_gcd = [0] * N
    for i, n in enumerate(As):
        if i == 0:
            cum_gcd[i] = n
        else:
            cum_gcd[i] = np.gcd(cum_gcd[i-1], n)
    return cum_gcd

def get_cav_gcds(N, cum_l, cum_r):
    cav_gcds = [0] * N
    for i in range(N):
        if i == 0:
            cav_gcds[i] = cum_r[i+1]
        elif i == N-1:
            cav_gcds[i] = cum_l[i-1]
        else:
            cav_gcds[i] = np.gcd(cum_l[i-1], cum_r[i+1])
    return cav_gcds

def main():
    input = sys.stdin.readline
    N = int(input())
    As = list(map(int, input().split()))
    cum_l = get_cum_gcd(N, As)
    cum_r = list(reversed(get_cum_gcd(N, reversed(As))))
    cav_gcds = get_cav_gcds(N, cum_l, cum_r)
    print(max(cav_gcds))

if __name__ == '__main__':
    main()


Fixed submission:
import sys

def gcd(a, b):
    b, a = sorted([a, b])
    if a%b == 0:
        return b
    else:
        return gcd(b, a%b)

def get_cum_gcd(N, As):
    cum_gcd = [0] * N
    for i, n in enumerate(As):
        if i == 0:
            cum_gcd[i] = n
        else:
            cum_gcd[i] = gcd(cum_gcd[i-1], n)
    return cum_gcd

def get_cav_gcds(N, cum_l, cum_r):
    cav_gcds = [0] * N
    for i in range(N):
        if i == 0:
            cav_gcds[i] = cum_r[i+1]
        elif i == N-1:
            cav_gcds[i] = cum_l[i-1]
        else:
            cav_gcds[i] = gcd(cum_l[i-1], cum_r[i+1])
    return cav_gcds

def main():
    input = sys.stdin.readline
    N = int(input())
    As = list(map(int, input().split()))
    cum_l = get_cum_gcd(N, As)
    cum_r = list(reversed(get_cum_gcd(N, reversed(As))))
    cav_gcds = get_cav_gcds(N, cum_l, cum_r)
    print(max(cav_gcds))

if __name__ == '__main__':
    main()
Buggy python submission (verdict: Runtime Error):
from typing import List

n = int(input())
day, x = map(int, input().split())
a = [int(input()) for _ in range(n)]
def choco(cday):
    sum = 0
    for i in range(day):
        if cday * i + 1 <= day:
           sum += 1
    return sum
csum = sum(list(map(choco, a))) + x
print(csum)


Fixed submission:
n = int(input())
day, x = map(int, input().split())
a = [int(input()) for _ in range(n)]


def choco(cday):
    sum = 0
    for i in range(day):
        if cday * i + 1 <= day:
           sum += 1
    return sum


csum = sum(list(map(choco, a))) + x
print(csum)
Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())
reverse = [1]*(N*M)
num1 = [-M-1, -M, -M+1, -1, 1, M-1, M, M+1]
num2 = [-M, -M+1, 1, M, M+1]
num3 = [-M-1, -M, -1, M-1, M]
if N == M == 1:
    reverse[0] *= -1
else:
    for i in range(N*M):
        reverse[i] *= -1
        if (i % M) == 0:
            num = num2
        elif ((i + 1) % M) == 0:
            num = num3
        else:
            num = num1
        for j in num:
            if ((i + j) >= 0) and ((i + j) < (N * M)):
                reverse[i+j] *= -1
print(reverse.count(-1))


Fixed submission:
N, M = map(int, input().split())
if ((N - 2) == 0) or ((M - 2) == 0):
    result = 0
elif N == M == 1:
    result = 1
elif N == 1:
    result = M - 2
elif M == 1:
    result = N - 2
else:
    result = (N - 2) * (M - 2)
print(result)

Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())
reverse = [1]*(N*M)
num1 = [-M-1, -M, -M+1, -1, 1, M-1, M, M+1]
num2 = [-M, -M+1, 1, M, M+1]
num3 = [-M-1, -M, -1, M-1, M]
for i in range(N*M):
    #print(i, reverse)
    reverse[i] *= -1
    if (i % M) == 0:
        num = num2
    elif ((i + 1) % M) == 0:
        num = num3
    else:
        num = num1
    for j in num:
        if ((i + j) >= 0) and ((i + j) < (N * M)):
            reverse[i+j] *= -1
    #print(reverse)
#print(num)
#print(reverse)
print(reverse.count(-1))


Fixed submission:
N, M = map(int, input().split())
if ((N - 2) == 0) or ((M - 2) == 0):
    result = 0
elif N == M == 1:
    result = 1
elif N == 1:
    result = M - 2
elif M == 1:
    result = N - 2
else:
    result = (N - 2) * (M - 2)
print(result)
Buggy python submission (verdict: Runtime Error):
idCards, gates = input().split(" ")
idCards = int(idCards)
gates = int(gates)

for count in range(0, gates, 1):
    num1, num2 = input().split(" ")
    minNum.append(int(num1))
    maxNum.append(int(num2))

minId = max(minNum)
maxId = min(maxNum)
if minId > maxId:
    print("0")
else:
    print((maxId - minId) + 1)

Fixed submission:
import sys
idCards, gates = input().split(" ")
idCards = int(idCards)
gates = int(gates)
minNum = []
maxNum = []

if idCards > 1000000 or gates > 1000000:
    sys.exit()

for count in range(0, gates, 1):
    num1, num2 = input().split(" ")
    minNum.append(int(num1))
    maxNum.append(int(num2))

minId = max(minNum)
maxId = min(maxNum)
if minId > maxId:
    print("0")
else:
    print((maxId - minId) + 1)
Buggy python submission (verdict: Runtime Error):
data = input()
data_list = [c for c in data]
# print(data_list)
count = 1
delete_count = 0
while ('0' in data_list) and ('1' in data_list):
    if count == len(data_list):
        count = 1

    if data_list[count - 1] != data_list[count]:
        del data_list[count - 1: count + 1]
        delete_count += 2
        # count = 1
    else:
        count += 1

print(delete_count)


Fixed submission:
data = input()
data_list = [c for c in data]
# print(data_list)
count = 1
delete_count = 0
number_of_one = data_list.count('1')
number_of_zero = data_list.count('0')

min_num = min(number_of_zero, number_of_one)
print(min_num * 2)

Buggy python submission (verdict: Time Limit Exceeded):
data = input()
data_list = [c for c in data]
#print(data_list)
count = 1
delete_count = 0
while ('0' in data_list) and ('1' in data_list):
    if data_list[count - 1] != data_list[count]:
        del data_list[count - 1: count + 1]
        delete_count += 2
        count = 1
    else:
        count += 1

print(delete_count)


Fixed submission:
data = input()
data_list = [c for c in data]
# print(data_list)
count = 1
delete_count = 0
number_of_one = data_list.count('1')
number_of_zero = data_list.count('0')

min_num = min(number_of_zero, number_of_one)
print(min_num * 2)

Buggy python submission (verdict: Runtime Error):
data = input()
data_list = [c for c in data]
#print(data_list)
count = 0
delete_count = 0
while ('0' in data_list) and ('1' in data_list):
    #print("count" + str(count))
    if data[count] != data[count + 1]:
        data_list.pop(count)
        data_list.pop(count)
        delete_count += 2
    else:
        count += 1

  #  print(data_list)
 #   print("delete_count" + str(delete_count))
    #if delete_count >= len(data_list) // 2:
    #   break

#print(data_list)
print(delete_count)



Fixed submission:
data = input()
data_list = [c for c in data]
# print(data_list)
count = 1
delete_count = 0
number_of_one = data_list.count('1')
number_of_zero = data_list.count('0')

min_num = min(number_of_zero, number_of_one)
print(min_num * 2)