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 sc=new Scanner(System.in);
		double r,pi,a,b;
		pi=Math.PI;
		r=sc.nextDouble();
		a=pi*r*r;
		b=2*pi*r;
	System.out.printf("%f %f\n",a,b);
	}
}