#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int N, P;
    cin >> N >> P;
    vector<int> pay(N);

    for(int i = 0; i < N; ++i){
        cin >> pay[i];
    }

    int index1 = 0, index2 = 0;
    int sum = pay[0];
    int minInterval = N;
    if(pay[0] >= P){
        minInterval = 1;
    }

    while(index2 < N){
        if(sum >= P){
            minInterval = min(minInterval, index2 - index1 + 1);
            sum -= pay[index1];
            index1++;
        }
        else{
            index2++;
            sum += pay[index2];
        }
    }
    cout << minInterval;
    return 0;
}