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 n=new Scanner(System.in);
		double a=n.nextDouble();
		double b=a*a*Math.PI;
		double c=a*2*Math.PI;
		System.out.printf("%.6f %.6f",b,c);
	}
}