// UUID: b4c9c545-fbfd-45d6-8448-cb384fcff76a
#include <bits/stdc++.h>
using namespace std;

int main() {
    int n, p;
    cin >> n >> p;
    vector<int> a(n);
    for (int i = 0; i < n; i++){
        cin >> a[i];
    }
    int i = 0;
    int j = 0;
    int sum = 0;
    int mini = 1000000000;
    while (i != n){
        cout << sum << " " << i << " " << j << "\n";
        if (sum >= p){
            mini = min(mini, j-i);
            sum -= a[i];
            i++;
        } else if(j != n) {
            sum += a[j];
            j++;
        } else i++;
    }
    if (sum >= p)
        mini = min(mini, j-i);
    cout << mini;
    
}