import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// ここにコードを挿入
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int x = sc.nextInt();
		int t = 0, s = 0, k = 1;
		for (int i = 1; i <= n; i++) {
			t = sc.nextInt();
			s += t;
			if (s <= x) {
				k++;
			}

		}
		System.out.println(k);
	}

}
/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