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.*;

class Main{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
		double r, l, s;
		
		r = sc.nextDouble();
		
		l = 2 * r * Math.PI;
		s = r * r * Math.PI;
		
		System.out.printf("%.5f %.5f\n", s, l);
	}
}