static void Main(string[] args) { User user = new User("wrparra"); Tournament tournament = new Tournament("Copa América 2011"); tournament.SubscribeUser(user); Console.WriteLine(tournament); foreach (var userSubscribed in tournament.SubscribedUsers) { Console.WriteLine(user); } Match match = new Match() { HomeTeam = new Team("Brasil"), AwayTeam = new Team("Argentina") }; Console.WriteLine(match); match.SetScore(2, 1); Console.WriteLine(match); Console.Read(); }