public static void Main(string[] args)
        {
            Console.WriteLine("===========================================");
            Console.WriteLine("Welcome to Off Amazon Payments Service Automatic Payments Simple Checkout Sample!");
            Console.WriteLine("===========================================");
            Console.WriteLine();

            string billingAgreementId = CLIHelper.getStringFromConsole("billing agreement id");
            double paymentAmount      = CLIHelper.getDoubleFromConsole("payment amount");
            int    shippingOption     = CLIHelper.getShippingOption();
            OffAmazonPaymentsServiceAutomaticPaymentsSimpleCheckout automaticPayments =
                new OffAmazonPaymentsServiceAutomaticPaymentsSimpleCheckout(billingAgreementId);

            RunSample(automaticPayments, billingAgreementId, paymentAmount, shippingOption);

            Console.WriteLine();
            Console.WriteLine("===========================================");
            Console.WriteLine("End of output. You can close this window");
            Console.WriteLine("===========================================");

            System.Threading.Thread.Sleep(50000);
        }
        public static void Main(string[] args)
        {
            Console.WriteLine("===========================================");
            Console.WriteLine("Welcome to Off Amazon Payments Service Simple Checkout Sample!");
            Console.WriteLine("===========================================");
            Console.WriteLine();

            string orderReferenceId    = CLIHelper.getStringFromConsole("order reference id");
            double orderAmount         = CLIHelper.getDoubleFromConsole("order amount");
            int    authorizationOption = CLIHelper.getAuthorizationOption();
            int    shippingOption      = CLIHelper.getShippingOption();
            OffAmazonPaymentsServiceSimpleCheckout simpleCheckout = new OffAmazonPaymentsServiceSimpleCheckout(orderReferenceId);

            RunSample(orderReferenceId, orderAmount, shippingOption, authorizationOption, simpleCheckout);

            Console.WriteLine();
            Console.WriteLine("===========================================");
            Console.WriteLine("End of output. You can close this window");
            Console.WriteLine("===========================================");

            System.Threading.Thread.Sleep(50000);
        }