static void Main(string[] args)
{
Logistics r = new RoadLogistics();
Logistics s = new SeaLogistics();
r.PlanDelivery();
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
s.PlanDelivery();
}
static void FactoryMethodExample()
{
var roadLogistics = new RoadLogistics();
roadLogistics.PlanDelivery();
var truck = roadLogistics.FactoryMethod();
var seaLogistics = new SeaLogistics();
seaLogistics.PlanDelivery();
var ship = seaLogistics.FactoryMethod();
}