static void Main(string[] args)
{
CourierSystem editor = new CourierSystem();
PackageSystem spelling = new PackageSystem();
PaymentSystem post = new PaymentSystem();
FacadePostClientSystem facade = new FacadePostClientSystem(editor, spelling, post);
ClientPost.ClientCode(facade);
Console.ReadLine();
}
public static void ClientCode(FacadePostClientSystem facade)
{
Console.Write(facade.Operation());
}
