using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("");

        Console.WriteLine("Volume of a Cylinder");

        Console.WriteLine("Introduce the heigt: ");

        double n1 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Introduce the ratio: ");

        double n2 = Convert.ToDouble(Console.ReadLine());

        var r = 3.14*(n2*n2)*n1;

        Console.WriteLine("The volume of the cylender is: {0}",r);

        Console.WriteLine("\n= BY: Elvis Josué Pérez Morales =");

    }

}

​