static void Main(string[] args)
{
var myDerivedClass = new MyDerivedClass();
var mySealedClass = new MySealedClass();
mySealedClass.Run();
myDerivedClass.Run();
Console.ReadKey();
}
public MyDerivedClass()
{
_originalSealed = new MySealedClass();
Console.WriteLine("Hello from MyDerivedClass");
}