package main

import . "fmt"
import . "math/big"

func main() {
	var p,c int
	Scan(&p,&c)
	n := NewInt(1)
	for i := 0; i < p; i++ {
		n.Mul(n, NewInt(2+3+5+7+11+13))
	}
	for i := 0; i < c; i++ {
		n.Mul(n, NewInt(4+6+8+9+10+12))
	}
	d := new(Int).Exp(NewInt(6), NewInt(int64(p+c)), nil)
	ans := new(Rat).SetFrac(n, d)
	Println(ans.FloatString(20))
}