using System;

public class Program

{

    public static void Main()

    {

        //Arturo Corral

        String name;

        Console.WriteLine("hello whats your name");

        name = Console.ReadLine();

        switch (name)

        {

                case"Arturo":

                case"ARTURO":

                case"arTurO":

                Console.WriteLine("Hey thats my name!!");

                break;

            default:

                Console.WriteLine("Welcome!!");

                break;

        }

        Console.WriteLine("Give me a number from 1-20 please");

        int num;

        num = int.Parse (Console.ReadLine());

        switch (num)

        {

            case 1:

            case 3:

            case 5:

            case 7:

            case 9:

            case 11:

            case 13:

            case 15:

            case 17:

            case 19:

                Console.WriteLine("Your number is odd");

                break;

            case 2:

            case 4:

            case 6:

            case 8:

            case 10:

            case 12:

            case 14:

            case 16:

            case 18:

            case 20:

                Console.WriteLine("Your number is even");

                break;

            default:

                Console.WriteLine("Your number is out of range");

                break;

        }

​