int main() {
    std::string sentence;
    sf::Packet packet;
    sf::TcpListener listener;
    sf::TcpSocket client;
    client.setBlocking(false);

    // bind the listener to a port
    if (listener.listen(53000) != sf::Socket::Done)
    {
        cout << "error listening";
    }

    // accept a new connection

    if (listener.accept(client) == sf::Socket::Done)
    {
        cout << "accepted and working :";
    }

    while (1) {
        client.receive(packet);
        packet >> sentence;
        cout << sentence;
    }
cin.get();

}

sf::TcpSocket socket;
socket.setBlocking(false);
sf::Packet packet;
std::string sentence;



 if (...) {

                            packet << sentence;
                            socket.send(packet);
                            cout << sentence;

                        }