import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int x = in.nextInt();

		int cnt = 1;
		int sum = 0;
		for ( int i = 0; i < n; i++ ) {			
			sum += in.nextInt();
			if ( x < sum ) break;			
			cnt++;
		}

		System.out.println(cnt);
		in.close();
	}
}
/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