using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Input radius : ");

        double radius = double.Parse(Console.ReadLine());

        Console.WriteLine("----------------------------------");

        double area = Math.PI*(radius*radius);

        Console.WriteLine("Circle area   = {0:f3}",area);

        double ccf = Math.PI*2*radius;

        Console.WriteLine("Circumference = {0:f3}",ccf);

        double vr = (4.0/3)*(Math.PI*radius*radius*radius);

        Console.WriteLine("Volumn round  = {0:f3}",vr);

    }

}