View Code of Problem 72

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        double m, n;
        double sum = 0.0f;
        String input = sc.nextLine();
        String[] nums = input.split(" ");

        m = Double.parseDouble(nums[0]);
        n = Integer.parseInt(nums[1]);

        for(int i = 1; i <= n; i ++) {
            sum += m;
            m /= 2.0;
            if(i != n) {
                sum += m;
            }

        }

        String format = String.format("%.2f %.2f", m, sum);
        System.out.println(format);
    }
}