std::list<sf::TcpSocket> sockets;
            sf::Packet in;
            sf::Packet out;
            out << uint16_t(2);
            for (;;) {
                sockets.emplace_back();
                sockets.back().setBlocking(false);
                sockets.back().connect("127.0.0.1", 273);
                for (auto & s : sockets) {
                    auto err = s.receive(in);
                    if (err == sf::Socket::Status::Done) {
                        uint16_t op;
                        in >> op;
                        if (op == 1) {
                            s.send(out);
                        }
                    }
                }
                std::this_thread::sleep_for(std::chrono::milliseconds(10));
            }