#include <bits/stdc++.h>
int main()
{
    int n,p,s=0,m=100001,a;
    std::queue<int> q;
    std::cin>>n>>p;
    while(n--){std::cin >> a;s+=a;q.push(a);
     while(s >= p){
      if(q.size()<m)m=q.size();s -= q.front();q.pop();}}
    std::cout << m;
    return 0;
}