public void Process()
        {
            while (true)
            {
                Console.WriteLine("Insert first number");
                float firstNum = Convert.ToSingle(Console.ReadLine());

                Console.WriteLine("Insert second number");
                float secondNum = Convert.ToSingle(Console.ReadLine());

                Console.WriteLine("Select operator (0 = +, 1 = -, 2 = *, 3 = /");
                byte command = Convert.ToByte(Console.ReadLine());

                Packet packet = new Packet(command, firstNum, secondNum);

                byte[] data = packet.GetData();
                socket.SendTo(data, serverEndPoint);

                byte[] response = new byte[data.Length];
                int    rlen     = socket.Receive(response);
                Console.WriteLine(BitConverter.ToSingle(response, 1));
            }
        }