static void Main(string[] args)
{
var personRegister = new PersonRegister();
personRegister.PersonAddedHandlerEvent += ConsoleHandler;
personRegister.PersonAddedHandlerEvent += PrintHandler;
personRegister.ReadPersonsFromFile("Resources/Persons.txt");
personRegister.Sort(CompareBySurname);
personRegister.Sort(CompareByFirstname);
personRegister.PrintPersons();
Console.WriteLine("First Match:");
Person p = personRegister.FindPerson(ContainsA);
Console.WriteLine($"{p.Firstname} {p.Surname}");
Console.ReadKey();
}