#include <iostream>
#include <cmath>
using namespace std;
int main(){
	int n,x,a[100],sum;
	cin>>n;
	cin>>x;
	for(int i=0;i<=n;i++){
		cin>>a[i];
		if(a[i]<=x) {
			x-=a[i];
			sum+=1;
		}
		else sum+=0;
	}
	cout<<sum;
	return 0;
} 

听取WA声一片，哪里有问题...蒟蒻求救