static void Main(string[] args)
{
GamerManager gamerManager = new GamerManager(new UserValidationManager());
gamerManager.Add(new Gamer {
Id = 1, FirstName = "Mustafa", LastName = "Turan", BirthYear = 2000, IdentiyNumber = 12345
});
TournamentManager tournamentManager = new TournamentManager();
tournamentManager.Add(new Tournament {
Id = 1, TournamentName = "CS GO 1v1", TournamentDate = "2021", TournamentPrize = 10000,
TournamentPlace = "Istanbul"
});
}