#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
	int m, n;
	cin >> m >> n;
	double num = m, sum = -m;
	for (int i = 1; i <= n; i++) {
		sum += num*2.0;
		num /= 2.0;
	}
	printf("%.2f %.2f\n", num, sum);
	return 0;
}