Task16

import java.util.Scanner;

public class Task16 {
    public static void main(String[] args) {
        int n;
        int e;
        int res = 0;
        Scanner in = new Scanner(System.in);
        n = in.nextInt();
        e = in.nextInt();
        if(Math.pow(0.5, n) > e) res += Math.pow(0.5, n);
        if(Math.pow(0.333, n) > e) res += Math.pow(0.333, n);
        System.out.println(res);

    }
}