import java.util.Scanner;

public class Main {
	 public static void main(String args[]){
		 Scanner std = new Scanner(System.in);
		 int n = std.nextInt();
		 int x = std.nextInt();
		 int[] l = new int[n];
		 for(int i=0;i<n;i++) {
			 l[i] = std.nextInt();
		 }
		 int d=0;
		 int a=0;
		 for(int i=0;i<n;i++) {
			 d+=l[i];
			 if(d>x) {
				 System.out.println(i+1);
				 a = 1;
				 break;
			 }
		 }
		 if (a==0) {
			 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