using System;

​

namespace MyApplication

{

  public class Program

  {

    public static void Main(string[] args)

    {

        Console.Write("Wat is je voornaam: ");

        var val = Console.ReadLine();

        switch(val.ToLower()){

            case "kyrian":

                Console.WriteLine("Hallo Kyrian!");

                break;

            case "mitchel":

                Console.WriteLine("Hallo Mitchel!");

                break;

            default:

                Default();

                break;

        }

    }

    public static void Default(){

        Console.WriteLine("Jou naam staat niet in mijn database!");

    }

  }

}