import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int P = sc.nextInt();
        double a = (2+3+5+7+11+13)/6.0;
        int C = sc.nextInt();
        double b = (4+6+8+9+10+12)/6.0;
        double r = Math.pow(a,P) * Math.pow(b,C);
        System.out.println(r);
    }
}