Buggy python submission (verdict: Time Limit Exceeded):
import sys
def input():
    return sys.stdin.readline()[:-1]

S = list(map(int, list(input())))
num = 0
dict = [0 for i in range(2019)]
dict[0] = 1
ans = 0

for i , n in enumerate(S[::-1]):
    num += n * (pow(10,i) % 2019)
    dict[num % 2019] += 1

for i in range(2019):
    ans += dict[i] * (dict[i] - 1) // 2
print(ans)

Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from scipy.special import comb
from collections import Counter, deque

D = deque(map(int, list(input())))
num_mod = {}
num_mod[0] = 1
value = 0

for i in range(len(D)):
    value = value + D.pop() * 10**i
    modulo = value % 2019
    #print(modulo)
    if modulo in num_mod.keys():
        num_mod[modulo] += 1
    else:
        num_mod[modulo] = 1

ans = [comb(i, 2, exact=True) for i in num_mod.values() if i > 1]
print(sum(ans))


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from scipy.special import comb
from collections import Counter, deque

D = deque(map(int, list(input())))
num_mod = {}
value = 0

for i in range(len(D)):
    value = value + D.pop() * 10**i
    modulo = value % 2019
    #print(modulo)
    if modulo in num_mod.keys():
        num_mod[modulo] += 1
    else:
        num_mod[modulo] = 1

fix = 0
ans = [comb(i, 2, exact=True) for i in num_mod.values() if i > 1]
#print(b)
if 0 in num_mod.keys():
    if num_mod[0] == 1:
        fix = 1
print(sum(ans)+fix)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Runtime Error):
from scipy.special import comb
from collections import Counter, deque

D = deque(map(int, list(input())))
num_mod = {}
value = 0

for i in range(len(D)):
    value = value + D.pop() * 10**i
    modulo = value % 2019
    #print(modulo)
    if modulo in num_mod.keys():
        num_mod[modulo] += 1
    else:
        num_mod[modulo] = 1

fix = 0
ans = [comb(i, 2, exact=True) for i in num_mod.values() if i > 1]
#print(b)
if 0 in num_mod.keys():
    if num_mod[0] == 1:
        fix = 1
print(sum(ans)+fix)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Runtime Error):
from scipy.special import comb
from collections import Counter, deque

D = deque(map(int, list(input())))
a = {}
value = 0

for i in range(len(D)):
    value = value + D.pop() * 10**i
    modulo = value % 2019
   # print(modulo)
    if modulo in a.keys():
        a[modulo] += 1
    else:
        a[modulo] = 1


b = [comb(i, 2, exact=True) for i in a.values() if i > 1]
#print(b)
print(sum(b))


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Runtime Error):
from scipy.special import comb
from collections import Counter, deque

S = list(map(int, list(input())))
D = deque(S)
a = {}
value = 0
ten_mod = 1

for i in range(len(S)):
    value = value + D.pop() * ten_mod % 2019
    ten_mod = ten_mod * 10 % 2019
    if value % 2019 in a.keys():
        a[value % 2019] += 1
    else:
        a[value % 2019] = 1

b = [comb(i, 2, exact=True) for i in a.values() if i > 1]
print(sum(b))


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Runtime Error):
S = input()
r, ans = 3, 0
for l in range(len(S)):
    while r < len(S):
        if int(S[0:l]) % 2019 == 0:
            ans += 1
            break
        if int(S[l:r+1]) % 2019 == 0:
            ans += 1
            break
        if int(S[r+1:len(S)]) % 2019 == 0:
            ans += 1
            break
        r += 1
    r = l + 3
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Runtime Error):
S = input()
r, ans = 3, 0
for l in range(len(S)):
    while r < len(S):
        if int(S[0:l]) % 2019 == 0:
            ans += 1
            break
        if int(S[l:r+1]) % 2019 == 0:
            ans += 1
            break
        if int(S[r+1:len(S)) % 2019 == 0:
            ans += 1
            break
        r += 1
    r = l + 3
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
S = input()
r, ans = 3, 0
for l in range(len(S)):
    while r < len(S):
        if int(S[l:r+1]) % 2019 == 0:
            ans += 1
            break
        r += 1
    r = l + 3
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
S = input()
r, ans = 0, 0
for l in range(len(S)):
    while r < len(S):
        if int(S[l:r+1]) % 2019 == 0:
            ans += 1
            break
        r += 1
    r = l + 1
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
S = input()
r, ans = 0, 0
for l in range(len(S)):
    while r < len(S) and int(S[l:r+1]) % 2019 != 0:
        r += 1
    #print(l,r)
    if int(S[l:r+1]) % 2019 == 0:
        ans += 1
    r = l + 1
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
S = input()
ans = 0
for j in range(len(S)):
    for i in range(j+1):
        if int(str(S[i:j+1])) % 2019 == 0:
            ans += 1
print(ans)


Fixed submission:
import sys
from collections import deque
def input():
    return sys.stdin.readline()[:-1]

S = deque(map(int, list(input())))
num = 0
dict = {}
dict[0] = 1
ans = 0

for i in range(len(S)):
    num += S.pop() * pow(10,i,2019)
    cand = num % 2019
    if cand in dict.keys():
        dict[cand] += 1
    else:
        dict[cand] = 1

for key in dict.keys():
    ans += dict[key] * (dict[key] - 1) // 2
print(ans)