import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int x = sc.nextInt();
		int [] list = new int [n + 1];
		list[0] = 0;

		for(int i = 1; i <= n; i++) {
			list[i] = sc.nextInt();
			list[i] += list[i-1];
		}
		int ans = 0;
		for(int i = 0; i <= n; i++) {
			if( list[i] <= x) ans++;
			else break;
		}
		System.out.println(ans);
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz