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

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = sys.stdin.readline()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()
    l = len(s)

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num%=2019
        dec *= 10
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()
    l = len(s)

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        dec *= 10
        cnt[num % 2019] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()
    l = len(s)

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        dec *= 10
        cnt[num % 2019] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    l = len(s)

    cnt = [0 for _ in range(2019)]
    tmp = int(s)
    for i in range(l + 1):
        tmp %= 10 ** (l-i)
        tmp_mod = tmp % 2019
        cnt[tmp_mod] += 1

    ans = 0
    for c in cnt:
        if c > 1:
            ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():

    s = input()

    l = len(s)

    cnt = [0 for _ in range(2019)]

    for i in range(l + 1):
        tmp = s[i:]
        if len(tmp) == 0:
            tmp = '0'
        tmp = int(tmp)
        tmp %= 2019
        cnt[tmp] += 1

    ans = 0
    for c in cnt:
        if c > 1:
            ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    # MODを使わない普通のComb
    def choose(n, r):
        res = 1
        fac = 1
        for i in range(r):
            res *= n - i
            fac *= i + 1
        return res // fac

    s = input()

    l = len(s)

    cnt = [0 for _ in range(2019)]

    for i in range(l + 1):
        tmp = s[i:]
        if len(tmp) == 0:
            tmp = '0'
        tmp = int(tmp)
        tmp %= 2019
        cnt[tmp] += 1

    ans = 0
    for c in cnt:
        if c > 1:
            ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    # MODを使わない普通のComb
    def choose(n, r):
        res = 1
        fac = 1
        for i in range(r):
            res *= n - i
            fac *= i + 1
        return res // fac

    s = input()

    l = len(s)

    cnt = dict()

    for i in range(l + 1):
        tmp = s[i:]
        if len(tmp) == 0:
            tmp = '0'
        tmp = int(tmp)
        tmp %= 2019
        if tmp in cnt.keys():
            cnt[tmp] += 1
        else:
            cnt[tmp] = 1

    ans = 0
    for v in cnt.values():
        ans += choose(v, 2)

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    # MODを使わない普通のComb
    def choose(n, r):
        res = 1
        fac = 1
        for i in range(r):
            res *= n - i
            fac *= i + 1
        return res // fac

    s = input()

    l = len(s)

    cnt = dict()

    for i in range(l + 1):
        tmp = s[i:]
        if len(tmp) == 0:
            tmp = '0'
        tmp = int(tmp)
        tmp %= 2019
        if tmp in cnt.keys():
            cnt[tmp] += 1
        else:
            cnt[tmp] = 1

    ans = 0
    for v in cnt.values():
        ans += choose(v, 2)

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

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

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    # MODを使わない普通のComb
    def choose(n, r):
        res = 1
        fac = 1
        for i in range(r):
            res *= n - i
            fac *= i + 1
        return res // fac

    s = input()

    l = len(s)

    cnt = dict()

    for i in range(l + 1):
        tmp = s[i:]
        if len(tmp)==0:
            tmp = '0'
        tmp = int(s[i:])
        tmp %= 2019
        if tmp in cnt.keys():
            cnt[tmp] += 1
        else:
            cnt[tmp] = 1

    ans = 0
    for v in cnt.values():
        ans += choose(v, 2)

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
import heapq
from collections import deque

# sys.setrecursionlimit(100001)
INF = sys.maxsize


# ===CODE===
def main():
    n = input()

    l = len(n)
    ans = 0
    for i in range(l):
        for j in range(i+3, l+1):
            s = n[i:j]
            if int(s)%2019==0:
                ans += 1

    print(ans)


if __name__ == '__main__':
    main()


Fixed submission:
import sys

# import re
import math
import collections
# import decimal
import bisect
import itertools
import fractions
# import functools
import copy
import heapq
import decimal
# import statistics
import queue

# import numpy as np

sys.setrecursionlimit(10000001)
INF = 10 ** 16
MOD = 10 ** 9 + 7
# MOD = 998244353

ni = lambda: int(sys.stdin.readline())
ns = lambda: map(int, sys.stdin.readline().split())
na = lambda: list(map(int, sys.stdin.readline().split()))


# ===CODE===


def main():
    s = input()

    cnt = [0 for _ in range(2019)]
    cnt[0] += 1
    dec = 1
    num = 0
    for i in reversed(s):
        num += int(i) * dec
        num %= 2019
        dec *= 10
        dec %= 2019
        cnt[num] += 1

    ans = 0
    for c in cnt:
        ans += c * (c - 1) // 2

    print(ans)


if __name__ == '__main__':
    main()