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

public class No156 {


    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    System.in));
            String[] nm = br.readLine().split(" ");
            int N = Integer.parseInt(nm[0]);
            int M = Integer.parseInt(nm[1]);

            String[] CStr = br.readLine().split(" ");
            int[] C = new int[N];
            for (int i = 0; i < N; i++) {
                C[i] = Integer.parseInt(CStr[1]);
            }

            int emptyCount = 0;
            for (int i = 0; i < C.length; i++) {

                if (C[i] <= M) {
                    M = M - C[i];
                    emptyCount++;
                } else {
                    break;
                }

            }

            System.out.println(emptyCount);
        } catch (Exception e) {
            System.err.println("Error:" + e.getMessage());
        }
    }

}