using System;

public class Program

{

    public static void Main()

    {

        double radius,area,circum;

        Console.Write("Insert the radius of the circle:");

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

        area=3.1415*radius*radius;

        circum=2*3.1415*radius;

        Console.WriteLine("The area of the circle:{0}",area);

        Console.WriteLine("The circum of the circle:{0}",circum);

    }

}