#include <iostream>
using namespace std;
long long M, ar[11000], S;
int N, s = 0, e = 1, answer = 0;
int main()
{
cin >> N >> M;
for (int x = 0; x < N; x++)
{
cin >> ar[x];
}
S = ar[0];
while (s <= e && s < N && e < N+1)
{
if (S == M)
{
answer++;
S -= ar[s];
s++;
}
else if (S < M)
{
S += ar[e];
e++;
}
else if (S > M)
{
S -= ar[s];
s++;
}
}
cout << answer;
}