import java.util.*;

public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int K = sc.nextInt();
        int[]L = new int[N];

        int cou =1;
        int wa = 0;
        for(int i=0; i<N; i++){   
            L[i] = sc.nextInt();
             wa += L[i];
            if(wa<=K){
                    cou++;
        } 
    }        
	System.out.println(cou);
      }
}

/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