import java.util.*;
 
class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int N = Integer.parseInt(sc.next());
        int X = Integer.parseInt(sc.next());
        int[] L = new int[N+1]; 
        int D = 0;
        int count = 1;
        int ans = N+1;
        for(int i = 1; i <= N; i++) {
            L[i] = Integer.parseInt(sc.next());
            D += L[i];
            count++;
            if(D > X) {
                ans = count-1;
                break;
            }
        }
        
        System.out.println(ans);
    }
}
/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