import java.util.*;
import java.io.*;
public class Main {

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine());
		int n = Integer.parseInt(st.nextToken());
		long x = Long.parseLong(st.nextToken());
		int[] arr = new int[n];
		st = new StringTokenizer(br.readLine());
		for(int i = 0; i < n; i++){
			arr[i] = Integer.parseInt(st.nextToken());
		}
		int curr = 0; int count = 1;
		for(int i = 0; i < n; i++){
			curr += arr[i];
			if(curr <= 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