static void Main(string[] args) { try { InputConverter inputConverter = new InputConverter(); CalculatorEngine calculatorEngine = new CalculatorEngine(); double firstNumber = inputConverter.ConvertInputToNumeric(Console.ReadLine()); double secondNumber = inputConverter.ConvertInputToNumeric(Console.ReadLine()); string operation = Console.ReadLine(); double result = calculatorEngine.Calculte(firstNumber, operation, secondNumber); System.Console.WriteLine(result); } catch (Exception ex) { // TODO: start logging exceptions System.Console.WriteLine(ex.Message); } }