#include<iostream>
#include<iomanip>
#include<algorithm>
#include<vector>
#include<numeric>
#include<cmath>

int main() {
	const std::vector<long long> prime_dice = { 2,3,5,7,11,13 };
	const std::vector<long long> non_prime_dice = { 4,6,8,9,10,12 };

	int p, c;
	std::cin >> p >> c;

	double ans = pow(std::accumulate(prime_dice.begin(), prime_dice.end(), 0.0) / 6 , p);
	if (c > 0) ans *= pow(std::accumulate(non_prime_dice.begin(), non_prime_dice.end(), 0.0) / 6, c);

	std::cout << std::setprecision(20) <<  ans << std::endl;
	return 0;
}