#include <cmath>
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    double h;
    int n;
    cin >> h >> n;
    double down = h / 2;
    double all = h;
    for(int i=2;i<=n;i++){
        all += down * 2;
        down /= 2;
    }
    printf("%.1f %.1f\n",all,down);
    return 0;
}