using System;

public class Program

{

    public static void Main()

    {

        double age;

        Console.WriteLine("What is your age?");

        age = Convert.ToDouble(Console.ReadLine());

        if()

        {

        }

        else if()

        {

        }

        else if()

        {

        }

        else if()

        {

        }

        else

    }

}