#include <bits/stdc++.h>

using namespace std;

#define INF 2000000000
#define MOD 1000000007
typedef long long ll;
typedef pair<int, int> P;


int main()
{
	int p;
	int c;
	cin >> p >> c;

	double pp[6] = {2,3,5,7,11,13};
	double cc[6] = {4,6,8,9,10,12};

	double psum = accumulate(pp, pp+6, 0);
	double csum = accumulate(cc, cc+6, 0);

	double ret = pow(psum/6,p) * pow(csum/6,c);
	printf("%.12f\n",ret);

}