import java.util.Scanner;

public class Main {
	private static Scanner sc;

	public static void main(String[] args) throws Exception {
		sc = new Scanner(System.in);
		int N = sc.nextInt();
		int X = sc.nextInt();

		int[] L = new int[N];

		for (int i = 0; i < N; i++) {
			L[i] = sc.nextInt();
		}

		int now = 0;
		int ans = 1;

		for (int i = 0; i < N; i++) {
			now += L[i];
			if (now > X) {
				break;
			}
			ans++;
		}

		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