// leggyors_penzk.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <queue>
#include <algorithm>
#define ll long long 
using namespace std;
ll n, k,p,v, ossz = 0;
int main()
{
    cin >> n >> p;
    vector<ll>x(n + 1);
    for (int i = 1; i <= n; ++i)
    {
        cin >> x[i];
        if (x[i] >= p)
        {
            cout << "1";
            return 0;
        }
        ossz += x[i];
    }
    if (ossz < p)
    {
        cout << "0";
        return 0;
    }
    int i = 1;
    ossz = 0,k=1;
    while (i<=n && ossz<p)
    {
        ossz += x[i];
        ++i;
    }
    ll mini = 100001;
    while (i <= n)
    {
        ossz += x[i];
        if (ossz >p)
        {
            
            while (k<i && ossz-x[k] >= p)
            {
                ossz -= x[k];
                ++k;
            }
        }
        mini = min(mini, (i - k + 1));
        ++i;
    }
    cout << mini;
    return 0;
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

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//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file