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

#define RREP(i,s,e) for (int i = e-1; i >= s; i--)
#define rrep(i,n) RREP(i,0,n)
#define REP(i,s,e) for (int i = s; i < e; i++)
#define rep(i,n) REP(i,0,n)

int main() {
    int p, c, ep, ec;
    vector<int> prime {2,3,5,7,11,13};
    vector<int> comp {4,6,8,9,10,12};
    cin >> p >> c;
    ep = ec = 0;
    rep(i,6) {
        ep += prime[i];
        ec += comp[i];
    }
    cout << fixed << setprecision(10);
    cout << pow(ep,p) * pow(ec,c) / pow(6,p+c) << endl;
    return 0;
}