#include <iostream>
#include <algorithm>
#include <iomanip>
using namespace std;

int main() {
	cout << fixed << setprecision(10);
	double P, C; cin >> P >> C;

	long double ans = 1.0;
	for (int i = 0; i < P; ++i) {
		ans *= (double)41 / 6;
	}
	for (int i = 0; i < C; ++i) {
		ans *= (double)49 / 6;
	}
	cout << ans << endl;
}