Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
def rec(digit, flag, k):
    limit = int(N[digit])
    if k > K:
        return 0
    if digit == len(N) - 1:
        if k == K:
            return 1
        elif k == K - 1:
            return limit if flag else 9
        else:
            return 0
    if flag:
        if limit == 0:
            return rec(digit + 1, 1, k)
        else:
            return rec(digit + 1, 0, k + 1) * (limit - 1) + rec(digit + 1, 1, k + 1) + rec(digit + 1, 0, k)
    else:
        return rec(digit + 1, 0, k + 1) * 9 + rec(digit + 1, 0, k)

N = input()
K = int(input())
print(rec(0, 1, 0))

Fixed submission:
def rec(digit, flag, k):
    limit = int(N[digit])
    if k > K:
        return 0
    if digit == len(N) - 1:
        if k == K:
            return 1
        elif k == K - 1:
            return limit if flag else 9
        else:
            return 0
    if flag:
        if limit == 0:
            return rec(digit + 1, 1, k)
        else:
            return rec(digit + 1, 0, k + 1) * (limit - 1) + rec(digit + 1, 1, k + 1) + rec(digit + 1, 0, k)
    else:
        return rec(digit + 1, 0, k + 1) * 9 + rec(digit + 1, 0, k)

N = input()
K = int(input())
print(rec(0, 1, 0))
Buggy python submission (verdict: Runtime Error):
from math import gcd
N = int(input())
A = [int(i) for i in input().split()]
lcd = A[0]
for i in A:
    lcd = lcd * i // gcd(lcd,i)
ans = 0
for i in A:
    ans += lcd // i
print(ans% (10**9+7))

Fixed submission:
from fractions import gcd
N = int(input())
A = [int(i) for i in input().split()]
lcd = A[0]
for i in A:
    lcd = lcd * i // gcd(lcd,i)
ans = 0
for i in A:
    ans += lcd // i
print( ans% (10**9+7))
Buggy python submission (verdict: Runtime Error):
S = input()
K = int(input())
for i,j in enumerate(S):
    if not j == "1":
        tmp = i+1
        break
if K < tmp:
    print("1")
else:
    print(j)

Fixed submission:
S = input()
K = int(input())
tmp = None
for i,j in enumerate(S):
    if not j == "1":
        tmp = i+1
        break
if tmp == None:
    print("1")
elif K < tmp:
    print("1")
else:
    print(j)
Buggy python submission (verdict: Runtime Error):
S = input()
flag = False
if S[0] == "A":
    count = 0
    for i,j in enumerate(S[2:-1]):
        if j == "C":
            count+=1
            ind = i+2
    if count == 1:
        tmp = S[1:ind]+A[ind+1:]
        if tmp == tmp.lower():
            flag = True
            
if flag:
    print("AC")
else:
    print("WA")

Fixed submission:
S = input()
flag = False
if S[0] == "A":
    count = 0
    for i,j in enumerate(S[2:-1]):
        if j == "C":
            count+=1
            ind = i+2
    if count == 1:
        tmp = S[1:ind]+S[ind+1:]
        if tmp == tmp.lower():
            flag = True
            
if flag:
    print("AC")
else:
    print("WA")
Buggy python submission (verdict: Time Limit Exceeded):
from collections import deque
D,G = [int(i) for i in input().split()]
P = [0]*D
n = 0
for i in range(D):
    p,c = [int(j) for j in input().split()]
    P[i] = [int(k) * 100 * (i+1) for k in range(p+1)]
    P[i][-1] += c
    n += p
deq = deque()
ans = n
deq.append((0,0,0))
while(len(deq)>0):
    tmp = deq.pop()
    if tmp[0]+1 > len(P):
        break
    for i,j in enumerate(P[tmp[0]]):
        cand = (tmp[0]+1, tmp[1]+i, tmp[2]+j)
        if cand[2] < G:
            if cand[1] < ans:
                deq.appendleft(cand)
        else:
            if cand[1] < ans:
                ans = cand[1]      
print(ans)

Fixed submission:
from collections import deque
D,G = [int(i) for i in input().split()]
P = [0]*D
n = 0
for i in range(D):
    p,c = [int(j) for j in input().split()]
    P[i] = [int(k) * 100 * (i+1) for k in range(p+1)]
    P[i][-1] += c
    n += p
deq = deque()
ans = n
deq.append((0,0,0))
dic = {}

while(len(deq)>0):
    tmp = deq.pop()
    if tmp[0]+1 > len(P):
        break
    for i,j in enumerate(P[tmp[0]]):
        cand = (tmp[0]+1, tmp[1]+i, tmp[2]+j)
        if cand[1] < ans:
            if cand[2] < G:
                if cand[1] not in dic:
                    dic[cand[1]] = cand[2]
                    deq.appendleft(cand)
                elif dic[cand[1]] <= cand[2]:
                    dic[cand[1]] = cand[2]
                    deq.appendleft(cand)
            else:
                ans = cand[1]
print(ans)
Buggy python submission (verdict: Runtime Error):
from fraction import gcd
def lcm(a, b):return a * b // gcd(a,b)
N = int(input())
A = [int(i) for i in input().split()]
B = lcm(A[0],A[1])
ans = 0
for i in A:
    B = lcm(B,i)
for i in A:
    ans += (B-1)%i
print(ans)

Fixed submission:
from fractions import gcd
def lcm(a, b):return a * b // gcd(a,b)
N = int(input())
A = [int(i) for i in input().split()]
B = lcm(A[0],A[1])
ans = 0
for i in A:
    B = lcm(B,i)
for i in A:
    ans += (B-1)%i
print(ans)
Buggy python submission (verdict: Runtime Error):
from collections import deque
N = int(input())
A = [int(i) for i in input().split()]

d = deque(A)
c = 0
while(len(d)>0):
    tmp = d.pop()
    if tmp%2==0:
        c+=1
        d.append(tmp//2)
print(c)

Fixed submission:
A,B = [int(i) for i in input().split()]
if A<9 and B<9:
    print("Yay!")
else:
    print(":(")
Buggy python submission (verdict: Runtime Error):
N = int(input())
A = [int(i) for i in input().split()]

d = deque(A)
c = 0
while(len(d)>0):
    tmp = d.pop()
    if tmp%2==0:
        c+=1
        d.append(tmp//2)
print(c)

Fixed submission:
from collections import deque
N = int(input())
A = [int(i) for i in input().split()]

d = deque(A)
c = 0
while(len(d)>0):
    tmp = d.pop()
    if tmp%2==0:
        c+=1
        d.append(tmp//2)
print(c)

Buggy python submission (verdict: Runtime Error):
from collections import deque
from collections import namedtuple

N = int(input())
A = [int(i) for i in input().split()]
Prog = namedtuple("Prog","p,c")
d = deque([(deque(A),0)])
ans = 0
while(len(d)>0):
    tmp = d.pop()
    tmp2 = deque()
    for i in gen(tmp[0]):
        tmp2.appendleft(i.p)
    tmp2.pop()
    if len(tmp2) < 1:
        if ans < tmp[1]:
            ans = tmp[1]
    else:
        for i in tmp2:
            d.appendleft((i,tmp[1]+1))
print(ans)

Fixed submission:
from collections import deque
N = int(input())
A = [int(i) for i in input().split()]

d = deque(A)
c = 0
while(len(d)>0):
    tmp = d.pop()
    if tmp%2==0:
        c+=1
        d.append(tmp//2)
print(c)
Buggy python submission (verdict: Runtime Error):
X = int(input())
p = 1e9

n = 1
C = [0]
while n**5 < p:
    C.append(n)
    n += 1

for i in C:
    for j in C:
        if i**5 + j**5 == X:
            a, b = i, -j
            break
        elif i**5 - j**5 == X:
            a, b = i, j
            break

print(a, b)

Fixed submission:
X = int(input())

def check():
    for i in range(1000):
        for j in range(1000):
            if i**5 + j**5 == X:
                print(i, -j)
                return
            elif i**5 - j**5 == X:
                print(i, j)
                break

check()
Buggy python submission (verdict: Time Limit Exceeded):
import math
K = int(input())

res = 0
for i in range(1, K+1):
    for j in range(1, K+1):
        for k in range(1, K+1):
            tmp = math.gcd(i, j)
            res += math.gcd(tmp, k)

print(res)


Fixed submission:
import math
K = int(input())

gl = [[0]*K for _ in range(K)]
for i in range(K):
    for j in range(K):
        gl[i][j] = math.gcd(i+1, j+1)

res = 0
for i in range(K):
    for j in range(K):
        for k in range(K):
            tmp = gl[i][j]
            res += gl[tmp-1][k]

print(res)
Buggy python submission (verdict: Time Limit Exceeded):
from collections import Counter
N, X, Y = map(int, input().split())

def dijkstra(s, n, w, cost):
    d = [float("inf")] * n
    used = [False] * n
    d[s] = 0

    while True:
        v = -1
        for i in range(n):
            if (not used[i]) and (v == -1):
                v = i
            elif (not used[i]) and d[i] < d[v]:
                v = i
        if v == -1:
            break
        used[v] = True
        for j in range(n):
            d[j] = min(d[j], d[v] + cost[v][j])
    return d

cost = [[float("inf") for _ in range(N)] for _ in range(N)]
for i in range(N-1):
    cost[i][i+1] = 1
    cost[i+1][i] = 1
cost[X-1][Y-1] = 1
cost[Y-1][X-1] = 1

res = Counter()
for i in range(N):
    res += Counter(dijkstra(i, N, N, cost)[:i])

for i in range(N-1):
    print(res[i+1])

Fixed submission:
from collections import Counter, defaultdict, deque

N, X, Y = map(int, input().split())

d = defaultdict(set)
for i in range(N-1):
    d[i].add(i+1)
    d[i+1].add(i)
d[X-1].add(Y-1)
d[Y-1].add(X-1)


cost = [[N]*N for _ in range(N)]

q = deque()

for i in range(N):
    q.append((i, 0))
    cost[i][i] = 0

    while q:
        u, st = q.popleft()

        for v in d[u]:
            if v != u and cost[i][v] > st+1:
                cost[i][v] = st+1
                q.append((v, st+1))

res = Counter()
for i, c in enumerate(cost):
    res += Counter(c[:i])

for i in range(N - 1):
    print(res[i + 1])

Buggy python submission (verdict: Time Limit Exceeded):
from collections import Counter
N, X, Y = map(int, input().split())

def dijkstra(s, n, w, cost):
    d = [float("inf")] * n
    used = [False] * n
    d[s] = 0

    while True:
        v = -1
        for i in range(n):
            if (not used[i]) and (v == -1):
                v = i
            elif (not used[i]) and d[i] < d[v]:
                v = i
        if v == -1:
            break
        used[v] = True
        for j in range(n):
            d[j] = min(d[j], d[v] + cost[v][j])
    return d

cost = [[float("inf") for _ in range(N)] for _ in range(N)]
for i in range(N-1):
    cost[i][i+1] = 1
    cost[i+1][i] = 1
cost[X-1][Y-1] = 1
cost[Y-1][X-1] = 1

res = Counter()
for i in range(N):
    res += Counter(dijkstra(i, N, N, cost)[:i])

for i in range(N-1):
    print(res[i+1])


Fixed submission:
from collections import Counter, defaultdict, deque

N, X, Y = map(int, input().split())

d = defaultdict(set)
for i in range(N-1):
    d[i].add(i+1)
    d[i+1].add(i)
d[X-1].add(Y-1)
d[Y-1].add(X-1)


cost = [[N]*N for _ in range(N)]

q = deque()

for i in range(N):
    q.append((i, 0))
    cost[i][i] = 0

    while q:
        u, st = q.popleft()

        for v in d[u]:
            if v != u and cost[i][v] > st+1:
                cost[i][v] = st+1
                q.append((v, st+1))

res = Counter()
for i, c in enumerate(cost):
    res += Counter(c[:i])

for i in range(N - 1):
    print(res[i + 1])
Buggy python submission (verdict: Time Limit Exceeded):
from collections import deque

S = deque(input())
Q = int(input())
for _ in range(Q):
    q = input().split()
    if q[0] == '1':
        S.reverse()
    else:
        if q[1] == '1':
            S.appendleft(q[2])
        else:
            S.append(q[2])

print(''.join(S))


Fixed submission:
from collections import deque

S = deque(input())
Q = int(input())
rev = False
for _ in range(Q):
    q = input().split()
    if q[0] == '1':
        rev = not rev
    else:
        if q[1] == '1':
            if rev:
                S.append(q[2])
            else:
                S.appendleft(q[2])
        else:
            if rev:
                S.appendleft(q[2])
            else:
                S.append(q[2])
if rev:
    S.reverse()

print(''.join(S))

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

S = deque(input())
Q = int(input())
for _ in range(Q):
    q = input().split()
    if q[0] == '1':
        S.reverse()
    else:
        if q[1] == '1':
            S.appendleft(q[2])
        else:
            S.append(q[2])

print(''.join(S))


Fixed submission:
from collections import deque

S = deque(input())
Q = int(input())
rev = False
for _ in range(Q):
    q = input().split()
    if q[0] == '1':
        rev = not rev
    else:
        if q[1] == '1':
            if rev:
                S.append(q[2])
            else:
                S.appendleft(q[2])
        else:
            if rev:
                S.appendleft(q[2])
            else:
                S.append(q[2])
if rev:
    S.reverse()

print(''.join(S))
Buggy python submission (verdict: Runtime Error):
N, P = map(int, input().split())
S = input()

res = 0
if P == 2 or P == 5:
    for i in range(N):
        if int(S[i]) % P == 0:
            res += i + 1
else:
    mp = [0]*len(S)
    mp[0] = 1
    cur = 0
    p10 = 1
    for c in S[::-1]:
        cur = (cur + int(c)*p10) % P
        res += mp[cur]
        mp[cur] += 1
        p10 *= 10
        p10 %= P

print(res)

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

res = 0
if P == 2 or P == 5:
    for i in range(N):
        if int(S[i]) % P == 0:
            res += i + 1
else:
    mp = [0]*P
    mp[0] = 1
    cur = 0
    p10 = 1
    for c in S[::-1]:
        cur = (cur + int(c)*p10) % P
        res += mp[cur]
        mp[cur] += 1
        p10 *= 10
        p10 %= P

print(res)
Buggy python submission (verdict: Time Limit Exceeded):
N, A, B = map(int, input().split())
p = int(10e9+7)

def cmb(n, r, p):
    if (r < 0) or (n < r):
        return 0
    r = min(r, n - r)
    return fact[n] * factinv[r] * factinv[n - r] % p


fact = [1, 1]  # fact[n] = (n! mod p)
factinv = [1, 1]  # factinv[n] = ((n!)^(-1) mod p)
inv = [0, 1]  # factinv

for i in range(2, N + 1):
    fact.append((fact[-1] * i) % p)
    inv.append((-inv[p % i] * (p // i)) % p)
    factinv.append((factinv[-1] * inv[-1]) % p)
def modpow(a, n, mod):
    res = 1
    while n > 0:
        if n & 1:
            res = res * a % mod
        a = a * a % mod
        n >>= 1
    return res


ans = modpow(2, N, p)-1-cmb(N, A, p)-cmb(N, B, p)
print(ans)

Fixed submission:
p = int(1e9+7)
def modpow(a, n, p):
    res = 1
    while n > 0:
        if n & 1:
            res = res * a % p
        a = a * a % p
        n >>= 1
    return res

n, a, b = map(int, input().split())
h = max(a, b)
l = min(a, b)

x = n
y = 1
c_low = x*modpow(y, p-2, p) % p
for i in range(1, h):
    x = x*(n-i) % p
    y = y*(i+1) % p
    if i+1 == l:
        c_low = x*modpow(y, p-2, p) % p
c_high = x*modpow(y, p-2, p) % p

print((modpow(2, n, p) -1 -c_low - c_high) % p)
Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())
p = list(map(int, input().split()))

res = 0

p = list(map(lambda x:(x+1)/2, p))
for i in range(N-K+1):
    kk = 0
    for j in range(K):
        kk += p[i+j]
    res = max(res, kk)

print(res)

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

kk = sum(p[:K])
res = kk

for i in range(N-K):
    kk += p[K+i] - p[i]
    res = max(res, kk)

res = res/2 + K/2
print(res)
Buggy python submission (verdict: Runtime Error):
N = input()
K = int(input())

digit = len(N)
dp = [[[0]*(digit+1) for _ in range(2)] for _ in range(digit)]

cd = int(N[0])
dp[0][0][0] = 0
dp[0][0][1] = 1
dp[0][1][0] = 1
dp[0][1][1] = cd-1

for i in range(1, digit):
    for k in range(i+2):
        cd = int(N[i])
        if k == 0:
            dp[i][1][0] = 1
        else:
            dp[i][0][k] = dp[i-1][0][k-1]
            dp[i][1][k] = dp[i-1][0][k-1]*(cd-1)+dp[i-1][0][k]\
                          +dp[i-1][1][k]+dp[i-1][1][k-1]*9


print(dp[-1][0][K]+dp[-1][1][K])

Fixed submission:
N = input()
K = int(input())

digit = len(N)
dp = [[[0]*(K+1) for _ in range(2)] for _ in range(digit)]

cd = int(N[0])
dp[0][0][0] = 0
dp[0][0][1] = 1
dp[0][1][0] = 1
dp[0][1][1] = cd-1

for i in range(1, digit):
    for k in range(K+1):
        cd = int(N[i])
        if k == 0:
            dp[i][1][0] = 1
        else:
            if cd == 0:
                dp[i][0][k] = dp[i-1][0][k]
                dp[i][1][k] = dp[i-1][1][k] + dp[i-1][1][k-1]*9
            else:
                dp[i][0][k] = dp[i - 1][0][k - 1]
                dp[i][1][k] = dp[i-1][0][k-1]*(cd-1)+dp[i-1][0][k]\
                          +dp[i-1][1][k]+dp[i-1][1][k-1]*9


print(dp[-1][0][K]+dp[-1][1][K])
Buggy python submission (verdict: Time Limit Exceeded):
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)

Fixed submission:
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)

Buggy python submission (verdict: Time Limit Exceeded):
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for i in range(N):
    res += l//A[i]

print(res % 1000000007)

Fixed submission:
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)

Buggy python submission (verdict: Time Limit Exceeded):
from fractions import gcd

def lcm(a, b):
    return a * b // gcd(a, b)

N = int(input())
A = list(map(int, input().split()))
res = 0

if N == 1:
    res = 1
else:
    l = lcm(A[0], A[1])
    for i in range(2, N):
        l = lcm(l, A[i])

    for i in range(N):
        res += l//A[i]

print(res % 1000000007)

Fixed submission:
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)

Buggy python submission (verdict: Time Limit Exceeded):
def gcd(a, b):
    while b:
        a, b = b, a % b
    return a

def lcm(a, b):
    return a * b // gcd(a, b)

N = int(input())
A = list(map(int, input().split()))
res = 0

if N == 1:
    res = 1
else:
    l = lcm(A[0], A[1])
    for i in range(2, N):
        l = lcm(l, A[i])

    for i in range(N):
        res += l//A[i]

print(res % 1000000007)

Fixed submission:
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)

Buggy python submission (verdict: Runtime Error):
def gcd(a, b):
    while b:
        a, b = b, a % b
    return a

def lcm(a, b):
    return a * b // gcd(a, b)

N = int(input())
A = list(map(int, input().split()))
res = 0

l = lcm(A[0], A[1])
for i in range(2, N):
    l = lcm(l, A[i])

for i in range(N):
    res += l//A[i]

print(res % 1000000007)

Fixed submission:
from fractions import gcd

N = int(input())
A = list(map(int, input().split()))
res = 0

l = A[0]
for i in range(1, N):
    l = l * A[i] // gcd(l, A[i])

for a in A:
    res += l//a

print(res % 1000000007)
Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())
A = [input().split() for _ in range(M)]

c = [0]*N
w = [0]*M

ac = 0
wa = 0

for i, v in A:
    if c[int(i)-1] == 0:
        if v == 'WA':
            w[int(i)-1] += 1
        elif v == 'AC':
            ac += 1
            wa += w[int(i)-1]
            c[int(i)-1] = 1

print(ac, wa)

Fixed submission:
N, M = map(int, input().split())
A = [input().split() for _ in range(M)]

c = [0]*N
w = [0]*N

ac = 0
wa = 0

for i, v in A:
    if c[int(i)-1] == 0:
        if v == 'WA':
            w[int(i)-1] += 1
        elif v == 'AC':
            ac += 1
            wa += w[int(i)-1]
            c[int(i)-1] = 1

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

p = int(1e9+7)
res = 0

for i in range(60):
    zc = 0
    oc = 0
    for j in range(len(A)):
        if A[j] % 2 == 0:
            zc += 1
        else:
            oc += 1
        A[j] = A[j] >> 1

    res += zc*oc*2**i
    res %= p

print(res)

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

p = int(1e9+7)
res = 0

for i in range(60):
    zc = 0
    oc = 0
    for j in range(len(A)):
        if A[j] % 2 == 0:
            zc += 1
        else:
            oc += 1
        A[j] = A[j] >> 1

    res += zc*oc*2**i
    res %= p

print(res)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = list(map(int, input().split()))
A = list(map(lambda x: format(x, '0b').zfill(60), A))

p = int(1e9+7)
res = 0
d = [0]*60

for a in A:
    for i in range(60):
        d[i] += int(a[i])

for i, d in enumerate(d[::-1]):
    res += d*(N-d)*2**i
    res %= p

print(res)

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

p = int(1e9+7)
res = 0

for i in range(60):
    zc = 0
    oc = 0
    for j in range(len(A)):
        if A[j] % 2 == 0:
            zc += 1
        else:
            oc += 1
        A[j] = A[j] >> 1

    res += zc*oc*2**i
    res %= p

print(res)

Buggy python submission (verdict: Time Limit Exceeded):
p = int(1e9+7)

N = int(input())
A = list(map(int, input().split()))
A = list(map(lambda x: format(x, '0b').zfill(60), A))
res = 0

for i in range(60):
    one = 0
    for a in A:
        one += int(a[-(i+1)])
    res += one*(N-one)*2**i
    res %= p

print(res)

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

p = int(1e9+7)
res = 0

for i in range(60):
    zc = 0
    oc = 0
    for j in range(len(A)):
        if A[j] % 2 == 0:
            zc += 1
        else:
            oc += 1
        A[j] = A[j] >> 1

    res += zc*oc*2**i
    res %= p

print(res)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
S = str(input())

ans = 0
for i in range(1000):
    n = "{:03}".format(i)
    index = 0
    c = 0
    for k in n:
        for j in range(index, len(S)):
            if S[j] == k:
                index = j+1
                c+=1
                break
    if c == 3:
        ans += 1
print(ans)

Fixed submission:
N = int(input())
S = str(input())

ans = 0
for i in range(1000):
    n = "{:03}".format(i)
    index = 0
    c = 0
    for k in n:
        for j in range(index, N):
            if S[j] == k:
                index = j+1
                c+=1
                break
    if c == 3:
        ans += 1
print(ans)

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

ans = 0
for i in range(1000):
    n = f"{i:03}"
    index = 0
    c = 0
    for k in n:
        for j in range(index, len(S)):
            if S[j] == k:
                index = j+1
                c+=1
                break
    if c == 3:
        ans += 1
print(ans)

Fixed submission:
N = int(input())
S = str(input())

ans = 0
for i in range(1000):
    n = "{:03}".format(i)
    index = 0
    c = 0
    for k in n:
        for j in range(index, N):
            if S[j] == k:
                index = j+1
                c+=1
                break
    if c == 3:
        ans += 1
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from itertools import combinations
N = int(input())
S = str(input())

print(len(set(combinations(S, 3))))

Fixed submission:
N = int(input())
S = str(input())

ans = 0
for i in range(1000):
    n = "{:03}".format(i)
    index = 0
    c = 0
    for k in n:
        for j in range(index, N):
            if S[j] == k:
                index = j+1
                c+=1
                break
    if c == 3:
        ans += 1
print(ans)