import java.util.*;
import java.lang.Integer;

class Main {
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      int N = sc.nextInt();
      int X = sc.nextInt();
      
      int sumL = 0;
      int count = 0;
    
      while(X >= sumL){
        if(count < N){
          int L = sc.nextInt();
          sumL += L;
          count++;
        }
        else{
          count++;
          break;
        }
      }
      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