import java.util.*;

class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        int X = sc.nextInt();
        int L[] = new int[N];
        for(int i=0; i<N; i++) {
            L[i] = sc.nextInt();
        }
        int D[] = new int[N+1];
        D[0] = 0;

        for(int i=1; i<N+1; i++){
            D[i] = D[i-1] + L[i-1];
        }
        int ans=0;
        for(int i=0; i<N+1; i++) {
            if(D[i] <= 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