import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int x = scanner.nextInt();
        int[] l = new int[n];
        int d = 0;
        for(int i = 0; i < n; i++){
            l[i] = scanner.nextInt();
        }

        int i = 0;
        while(d <= x && i < n){
            d = d + l[i];
            i++;
        }
        if(i ==  n && d <= x ) {
            System.out.println(i + 1);
        } else {
            System.out.println(i);
        }

    }
}

/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