import java.util.Scanner;

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

        int n = stdIn.nextInt();
        int x = stdIn.nextInt();
        int[] l = new int[n];
        for(int i=0; i<n; i++){
            l[i] = stdIn.nextInt();
        }
        int counter = 1;
        long zahyou = 0;
        for(int i=0; i<n; i++){
            zahyou += l[i];
            if(x<zahyou){
                break;
            }else{
                counter++;
            }
        }
        System.out.println(counter);
    }
}

/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