import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s1 = sc.nextLine();
		String[] spl1 = s1.split(" ");
		int N = Integer.parseInt(spl1[0]);
		int X = Integer.parseInt(spl1[1]);
		String s2 = sc.nextLine();
		String[] spl2 = s2.split(" ");
		int[] L = new int[N];
		for(int i = 0;i < N;i++){
			L[i] = Integer.parseInt(spl2[i]);
		}
		sc.close();

		int cnt = 1;
		int D = 0;
		for(int i = 0;i < N;i++){
			D += L[i];
			if(D > X)break;
			cnt++;
		}
		System.out.println(cnt);
	}
}
/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