import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int x = in.nextInt();
		int[] l = new int[n];
		for(int i=0;i<n;i++) {
			l[i] = in.nextInt();
		}
		int count = 0;
		while(x>=0 && count<n) {
			x -= l[count];
			count++;
		}
		System.out.println(x<0?count:n+1);
		in.close();
	}

}

/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