#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
using namespace std;

int main()
{
    const int a[] = {2, 3, 5, 7, 11, 13};
    const int b[] = {4, 6, 8, 9, 10, 12};

    int p, c;
    cin >> p >> c;

    double ans = (pow(accumulate(a, a + 6, 0.0) / 6.0, p)) *
                 (pow(accumulate(b, b + 6, 0.0) / 6.0, c));
    printf("%.15f\n", ans);

    return 0;
}