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

int main() {

    // 下落的高度和落地的次数
    double h;
    int n;
    double h1 = h;

    cin >> h;
    cin >> n;

    // write your code here......

    for (int i=1; i<n; i++)
    {
        h /= 2;
        h1 += 2 * h;
        
    }
    printf("%.1f", h1);
    cout << " ";
    printf("%.1f", h/2);


    return 0;


    return 0;
}