import java.util.*;
class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();//n＋1回飛ぶ
        int x = sc.nextInt();//座標
        int[] L = new int[n];
        int sum = 0;
        int cnt = 0;
        int ans = 1;

        for(int i = 0;i < n;i++){
            L[i] = sc.nextInt();
        }
        for(int i = 0;i < n;i++){
            cnt += L[i];
            if(cnt <= x)
            ans++;
        }
        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