public static void Main()
{
Console.ForegroundColor = ConsoleColor.Blue;
Console.Write("[R]Rot13 \nPick your encryption: ");
char encryption = char.ToLower(char.Parse(Console.ReadLine()));
switch (encryption)
{
case 'r':
Rot13 r = new Rot13();
Console.WriteLine(r.go());
break;
default:
break;
}
}