using System;

public class Program

{

    public static void Main()

    {

        //i couldn't make it work, sorry

    int letter;

    Console.WriteLine("Give me a letter and I'll tell you if it's a vowel or a consonant");

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

        switch (letter)

    {

        case A:

        case a:

        case E:

        case e:

        case I:

        case i:

        case O:

        case o:

        case U:

        case u:

        Console.WriteLine("It is a vowel");

            break;

            case B:

            case b:

            case C:

            case c:

            case D:

            case d:

            case F:

            case f:

            case G:

            case g:

            case H:

            case h:

            case J:

            case j:

            case K:

            case k:

            case L:

            case l:

            case M:

            case m:

            case N:

            case n:

            case P:

            case p:

            case Q:

            case q:

            case R:

            case r:

            case S:

            case s:

            case T:

            case t:

            case V:

            case v:

            case W:

            case w:

            case X:

            case x:

            case Y:

            case y:

            case Z:

            case z:

                Console.WriteLine("Tha'ts a consonant");

            break;

            default:

                Console.WriteLine("Thats not a letter");

                break;

    }

    }

}