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

/**************************************************************
	Problem: 2105
	User: chenjingqi
	Language: C++
	Result: Compile Error
****************************************************************/