题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while (scan.hasNext()) {
            int n = scan.nextInt();
            System.out.println(2.875 * (double) n);
            System.out.println(0.03125 * (double) n);
        }
    }
}