static void Main(string[] args)
{
Component1 component1 = new Component1();
Component2 component2 = new Component2();
Component3 component3 = new Component3();
new ConcreteMediator(component1, component2, component3);
Console.WriteLine("Client triggets operation A.");
component1.DoA();
Console.WriteLine();
Console.WriteLine("Client triggers operation D.");
component2.DoD();
Console.WriteLine();
Console.WriteLine("Client triggers opeartion B");
component3.DoB();
Console.ReadLine();
}
