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:
public class Main {
    public static void main(String[] args) {
		double r = new java.util.Scanner(System.in).nextDouble();
        System.out.printf("%f %f",r*r*Math.PI,2 * Math.PI*r);
    }
}