#include <iostream> using namespace std; void bi(float m,int n) { float q=2*m,sum = m; for (int i = 0; i < n-1; i++) { q = q / 2; sum += q; } printf("%.1f ", sum); printf("%.1f", q / 4); } int main() { float m; int n; cin >> m >> n; bi(m,n); return 0; }