#include<bits/stdc++.h>
using namespace std;
int n,k,a[230005],ans,sum,l; 
int main(){
    cin>>n>>k;
    int len=INT_MAX;
    for(int i=0;i<n;i++){
    	cin>>a[i];
    }
    for(int i=0;i<n;i++){
    sum+=a[i];
	while(sum>=k){
		len=min(len,i-l+1);
		sum-=a[l];
		l++;
	}
    }
    if(len==INT_MAX)cout<<0;
    else cout<<len;
    return 0;
}

/**************************************************************
	Problem: 2105
	User: chenjingqi
	Language: C++
	Result: Accepted
	Time:103 ms
	Memory:2972 kb
****************************************************************/