
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int X = sc.nextInt();
		int[] input = new int[N];
		for (int i = 0; i < input.length; i++) {
			input[i] = sc.nextInt();
		}
		int[] j = new int[N + 1];
		j[0] = 0;
		for (int i = 1; i < j.length; i++) {
			j[i] = j[i - 1] + input[i - 1];
		}
		int ans = 0;
		for (int i = 0; i < j.length; i++) {
			if (j[i] <= X)
				ans++;
		}
		System.out.println(ans);
		sc.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