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

#include <iostream>
#include <deque>

using namespace std;

int ball, jobb, mini, k, n, i, j,sum;

int main()
{
    cin >> n >> k;
    deque<int>x(n + 1);
    for (i = 1; i <= n; ++i) cin >> x[i];
    ball = 1;
    jobb = 1;
    while (sum < k)
    {
        sum += x[jobb];
        if (sum >= k) break;
        else jobb++;
    }
    mini = jobb - ball + 1;
    while (jobb<=n)
    {
        sum -= x[ball];
        ball++;
        if (sum >= k&&jobb-ball+1<mini)
        {
            mini = jobb-ball + 1;
            if (jobb < n)
            {
                jobb++;
                sum += x[jobb];
            }
            else break;
        }
        else
        {
            jobb++;
            sum += x[jobb];
        }
    }
    cout << mini;
    return 0;
}

/*


8 11
3 6 4 2 3 7 2 9
*/
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// Debug program: F5 or Debug > Start Debugging menu

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