import java.util.*;

public class Main {
	public static void main(String[] args){
	  Scanner sc = new Scanner(System.in);
	  int n = sc.nextInt();
	  int x = sc.nextInt();
      
      int[] l = new int[n];
      for(int i = 0; i < n; i++) {
        l[i] = sc.nextInt();
      }
      
      int sum = 0;
      boolean flg = false;
      for(int i = 0; i < n; i++) {
        sum += l[i];
        if (sum > x) {
          System.out.println(i+1);
          flg = true;
          break;
        }
      }
      if (!flg) {
        System.out.println(n+1);
      }
	}
}
/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