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[] bound = new int[n];
        int[] d = new int[n+1];
      
        int count = 0;
      
        for(int cr=0; cr<n; cr++){
            bound[cr] = sc.nextInt();
        }
      
        d[0]= 0;
      
        for(int cr=1; cr<n+1; cr++){
            d[cr] = d[cr-1] + bound[cr-1];
        }
      
       for(int num:d){
         if(num <= 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