#include <iostream>
#include <algorithm>
#include <functional>
#include <string>
#include <limits.h>
#include <vector>
#include <numeric>
using namespace std;

int main(){
	const int sosuu[6] = {2,3,5,7,11,13};
	const int gousei[6] = {4,6,8,9,10,12};
	const long pat[11] = {1,6,36,216,1296,7776,46656,279936,1679616,10077696,60466176};
	const int sos = 41;
	const int gou = 49;
	int p,c;
	double ans1 = 1;
	double ans2 = 1;
	double ans3;
	
	cin >> p >> c;
	
	for(int i=0; i<p; i++){
		ans1 *= sos;
	}
	ans1 /= pat[p];
	for(int i=0; i<c; i++){
		ans2 *= gou;
	}
	ans2 /= pat[c];
	
	ans3 = ans1 * ans2;
	
	cout.precision(15);
 	cout << fixed << (double) ans3 << endl;
	
	return 0;
}