
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);

		// input
		final int N = scan.nextInt();
		final int X = scan.nextInt();
		
		List<Integer> list = new ArrayList<>();
		for (int i = 0; i < N; i++) {
			list.add(scan.nextInt());
		}
		
		int index = 0;
		int count = 1;
		for (Integer i : list) {
			index += i;
			if (index <= X) {
				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