import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int N,X;
        N = scan.nextInt();
        X = scan.nextInt();
        int [] L = new int [N];
        for(int i=0;i<N;i++){
            L[i] = scan.nextInt();
        }
        int [] D = new int [N+1];
        D[0] = 0;
        for(int i=1;i<=N;i++){
            D[i] = D[i-1] +L[i-1];
        }
        int count = 0;
        for(int i=0;i<=N;i++){
            if(D[i]<=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