static void Main(string[] args) { var firstClass = new FirstClass(10); var busClass = new BusinessClass(20); var economClass = new EconomClass(150); firstClass.Fill(); busClass.Fill(); economClass.Fill(); var pilots = new List<Pilot> { new Pilot(), new Pilot() }; var stuards = new List<Stuard> { new Stuard(), new Stuard(), new Stuard(), new Stuard(), new Stuard(), new Stuard() }; var plane = new Plane.Plane(pilots, stuards); plane.AddUnit(firstClass); plane.AddUnit(busClass); plane.AddUnit(economClass); plane.GetBaggageStatus(); Console.ReadLine(); }