Problem: Write a program which calculates the area and circumference of a circle for given radius r.

Constraints

* 0 < r < 10000

Input

A real number r is given.

Output

Print the area and circumference of the circle in a line. Put a single space between them. The output should not contain an absolute error greater than 10-5.

Examples

Input

2


Output

12.566371 12.566371


Input

3


Output

28.274334 18.849556

Solution (in JAVA):

Solution:
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		double r =  new Scanner(System.in).nextDouble();		
		double cir = 2 * Math.PI * r;
		double vol = Math.PI * Math.pow(r, 2);
		System.out.printf("%.6f %.6f", vol, cir);
	}
}