import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int cnt = sc.nextInt();
    int bnd = sc.nextInt();
    int a[] = new int[cnt];
    int dist=0;
    int answer=1;
    for(int i=0;i<cnt;i++){
      a[i]=sc.nextInt();
    }
    for(int i=0;i<cnt;i++){
      
      dist+=a[i];
      if(dist>bnd){  
        break;
      }
      answer++;
    }
    System.out.println(answer);
  }
}
/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