#include #include #include #include #include #include #include #include #include #define repd(i,a,b) for (int i=(a);i<(b);i++) #define rep(i,n) repd(i,0,n) typedef long long ll; using namespace std; int inputValue(){ int a; cin >> a; return a; }; void inputArray(int * p, int a){ rep(i, a){ cin >> p[i]; } }; void inputVector(vector * p, int a){ rep(i, a){ int input; cin >> input; p -> push_back(input); } } template void output(T a, int precision) { if(precision > 0){ cout << setprecision(precision) << a << "\n"; } else{ cout << a << "\n"; } } double power(int a, int b){ double ret = 1; rep(i, b){ ret *= a; } return ret; } int main(int argc, const char * argv[]) { // source code int P = inputValue(); int C = inputValue(); int sumP = 2 + 3 + 5 + 7 + 11 + 13; int sumC = 4 + 6 + 8 + 9 + 10 + 12; double m = power(sumP, P) * power(sumC, C); double n = power(6, P + C); output(m / n, 32); return 0; }