import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {

	public static void main(String[] args) throws Exception {
		// TODO 自動生成されたメソッド・スタブ
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String W = in.readLine();
		long N =  Long.parseLong(W.split(" ")[0]);
		long X =  Long.parseLong(W.split(" ")[1]);

		String[] Wi = in.readLine().split(" ");
		int n =1;
		long p=0;

		for(int i = 0;i<Wi.length;i++){
			p+=Integer.parseInt(Wi[i]);
			if(p <= X){
				n++;
			}
		}

		System.out.println(n);

	}
}

/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