#include <bits/stdc++.h>
 
using namespace std;
const int N = 2e5 + 5;
using ll = long long;
 
int main() {
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
    ll n, tar;
    cin >> n >> tar;
    vector<ll> v(n);
    for (int i = 0; i < n; ++i) {
        cin >> v[i];
    }
    int l = 0, r = 0;
    ll sum = 0, ans = 0;
    while (l < n) {
        while (r < n && sum + v[r] <= tar)
            sum += v[r], r++;
        if (sum == tar)
            ans++;
        sum -= v[l];
        l++;
    }
    cout << ans << '\n';
    return 0;
}

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