public partial class Form1 : Form
    {
        public string server = "74.86.170.188";//"us1.auth.garena.com";
        public int port = 8687;//7456;
        private Socket socket;
        public Form1()
        {
            InitializeComponent();
            socket = ConnectSocket(server, port);
        }

        private static Socket ConnectSocket(string server, int port)
        {
            Socket s = new TcpClient().Client;
            s.Connect(server, port);
            return s;
        }
        private void button1_Click(object sender, EventArgs e)
        {
            byte[] receive = new byte[1040];
            byte[] packet0 = File.ReadAllBytes(@"./joinroom_3.ga");
            byte[] packet1 = File.ReadAllBytes(@"./joinroom_login.ga");
            byte[] packet2 = File.ReadAllBytes(@"./joinroom_3-czsk1.ga");
            socket.Send(packet0, packet0.Length, SocketFlags.None);
            socket.Send(packet1, packet1.Length, SocketFlags.None);
            socket.Send(packet2, packet2.Length, SocketFlags.None);
            socket.Receive(receive);
            foreach (byte r in receive)
                textBox1.Text += r.ToString();
        }
    }