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)
	{
		Scanner in =new Scanner(System.in);
		double r=in.nextDouble();
		double pi = 3.1415926535897932384626433 ;
		System.out.printf("%.8f %.8f", r*r*pi,2*r*pi);
		
	}

}