public static void Main()
{
FormFactory formFactory = new FormFactory();
MainController mainController = new MainController(formFactory,
ClientDebtRepository.GetInstance(), ClientRepository.GetInstance(),
ExerciseRepository.GetInstance(), TrainingGroupRepository.GetInstance(),
TrainingPeriodRepository.GetInstance(), TrainingRepository.GetInstance());
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new MainForm(mainController));
}