using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var p = int.Parse(line[0]);
        var c = int.Parse(line[1]);
        var p2 = 41 / 6d;
        var c2 = 49 / 6d;
        var ans = 1d;
        for (int i = 0; i < p; i++) ans *= p2;
        for (int i = 0; i < c; i++) ans *= c2;
        Console.WriteLine(ans);
    }
}