internal static void Run() { var menu = new Menu("Enter command: "); menu.Add("a", "Add ten", AddTen); menu.Add("b", "Multiply by four", MultiplyByFour); menu.Add("c", "Subtract by five", SubtractByFive); cc.DisplayMenu(menu); DisplayNumber(); cc.DisplayMenu(menu); DisplayNumber(); cc.DisplayMenu(menu); DisplayNumber(); }