public static void Main()
{
Person p = new Person();
Listenter listenter = new Listenter(p);
p.Age = 19;
Console.ReadLine();
}
static void Main(string[] args)
{
MagazineCollection collection1 = new MagazineCollection();
MagazineCollection collection2 = new MagazineCollection();
Listenter listener1 = new Listenter();
Listenter listener2 = new Listenter();
collection1.MagazineAdded += listener1.OnCollectionChanged;
collection1.MagazineReplaced += listener1.OnCollectionChanged;
collection1.MagazineAdded += listener2.OnCollectionChanged;
collection1.MagazineAdded += listener1.OnCollectionChanged;
collection1.AddDefaults();
collection2.AddDefaults();
Console.WriteLine("First listener output");
Console.WriteLine(listener1.ToString());
Console.WriteLine("Second listener output");
Console.WriteLine(listener2.ToString());
}