private static void Main(string[] args)
{
ManagerFactory managerFactory = new ManagerFactory();
var manager = managerFactory.GetSweepstakesManager();
MarketingFirm marketingFirm = new MarketingFirm(manager);
marketingFirm.CreateSweepStakes();
marketingFirm.CreateContestant();
marketingFirm.CreateContestant();
marketingFirm.CreateContestant();
marketingFirm.AddContestantsToSweepstakes();
string winnerName;
winnerName = marketingFirm.sweepstakes.PickWinner();
Console.WriteLine(winnerName);
Console.ReadLine();
}