static void Main(string[] args)
{
WaitingRoom wr = new WaitingRoom();
Patient one = new Patient(wr);
Patient two = new Patient(wr);
Patient three = new Patient(wr);
Patient four = new Patient(wr);
wr.RunWaitingRoom();
}
public Patient(WaitingRoom wr)
{
this.WaitingRoom = wr;
numberInQueue = wr.DrawNumber();
WaitingRoom.NumberChange += this.ReactToNumber;
}