public IEnumerable <string> Execute(IEnumerable <string> input) { var parameters = input.ToList(); cinemaConsole.Clear(); cinemaConsole.WriteLineMiddle("Type a city name:\n"); try { var cityName = cinemaConsole.ReadLineMiddle().TrimEnd().TrimStart(); Validations(cityName); cityServices.AddNewCity(cityName); cinemaConsole.HandleOperation("\nSuccessfully added to database"); return(parameters.Skip(1)); } catch (InvalidClientInputException e) { cinemaConsole.HandleException(e.Message); return(parameters.Skip(1)); } catch (EntityAlreadyExistsException e) { cinemaConsole.HandleException(e.Message); return(parameters.Skip(1)); } }