import java.util.Scanner;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   int N = sc.nextInt();
   int X = sc.nextInt();
   int[] Larr = new int[N];
   for(int i =1;i<=N;i++){
    Larr[i-1] = sc.nextInt(); 
   }
int sum = 0;
int count = 0;
   while(count < N && sum <= X)
   {
   sum = sum + Larr[count];
   count++;
   }
   if(sum <=X && count ==N) count++;
   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