#include <iostream>
#include <vector>

using namespace std;

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n, p;
	cin >> n >> p;
	vector<int> f(n);
	for (int i = 0; i < n; ++i) cin >> f[i];
	int penz = 0;
	int keret=0, minkeret = 100000;
	int j = 0;
	for (int i = 0, j = 0; i < n and j < n; ++i)
	{
		while (penz < p and j < n)
		{
			penz += f[j];
			++j;
			++keret;
		}
		if (keret < minkeret and j <= n and penz>=p) minkeret = keret;
		penz -= f[i];
		--keret;

	}
	if (keret < minkeret and j < n and penz >= p ) minkeret = keret;
	cout << minkeret;
	return 0;
}