#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("Yes");}else{puts("No");}
#define MAX_N 200005

int main() {
    double a[6] = {2,3,5,7,11,13};
    double b[6] = {4,6,8,9,10,12};
    int p,c;
    cin >> p >> c;
    double e1 = 0, e2 = 0;
    rep(i,6){
        e1 += a[i];
        e2 += b[i];
    }
    e1 /= 6;
    e2 /= 6;
    double ans = pow(e1, p) * pow(e2, c);
    cout << fixed << setprecision(10) << ans << endl;
    return 0;
}