10:6:2-R

import java.util.Scanner;
import java.lang.Math.*;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] l =new int[n];
        for(int i=0; i<n;i++) {
             l[i] = in.nextInt();
        }
        for(int i=0;i<n;i++){
            if(l[i]>0&& l[i]<=1000) {
                double w = l[i] * ((double) 6 / 10.0);
                double r = l[i] / 5.0;
                double re = (l[i]) * (w);
                double cir = Math.PI * (r * r);
                double rec = (re - cir);
                System.out.printf("%.2f  %.2f\n", cir, rec);
            }
        }
    }
}