package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)

func main() {
	sc.Split(bufio.ScanWords)
	p, c := nextFloat(), nextFloat()
	pt, ct := []float64{2, 3, 5, 7, 11, 13}, []float64{4, 6, 8, 9, 10, 12}
	t1, t2 := float64(0), float64(0)
	for i := range pt {
		t1 += pt[i]
		t2 += ct[i]
	}
	fmt.Println(math.Pow(t1/6, p) * math.Pow(t2/6, c))
}

func nextLine() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	i, _ := strconv.Atoi(nextLine())
	return i
}

func nextInt64() int64 {
	i, _ := strconv.ParseInt(nextLine(), 10, 64)
	return i
}

func nextUint64() uint64 {
	i, _ := strconv.ParseUint(nextLine(), 10, 64)
	return i
}

func nextFloat() float64 {
	f, _ := strconv.ParseFloat(nextLine(), 64)
	return f
}