import java.util.*;
import java.util.stream.*;

public class Main {
  public static int MOD = 1_000_000_007;

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int N = in.nextInt(), X = in.nextInt();
    int[] L = new int[N];
    for (int i = 0; i < N; i++) {
      L[i] = in.nextInt();
    }
    int ans = 1, pos = 0;
    for (int i = 0; i < N; i++) {
      pos += L[i];
      if (X < pos) {
        break;
      }
      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