static void Main(string[] args)
        {
            bool taskPerformed = false;
            int tryCounter = 0;

            while (!taskPerformed)
            {
                MathServiceClient client = new MathServiceClient();

                try
                {
                    client.CallService();
                    
                    taskPerformed = true;
                }
                catch (CommunicationException exception)
                {
                    Console.WriteLine(exception.Message);
                    client.Abort();

                    taskPerformed = false;
                    Thread.Sleep(1000 * tryCounter);
                    tryCounter++;
                }
            }

            Console.WriteLine("\r\nTask successfully performed");
            Console.ReadLine();
        }