import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int[] array = new int[a];
		int count = 1;
		int z = 0;
		for(int i = 0; i < array.length; i++) {
			array[i] = sc.nextInt();
		}
		for(int i = 0; i < array.length; i++) {
			z += array[i];
			if(z <= b) {
				count++;
			}	
		}
		System.out.println(count);
	}
}
/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