import java.net.*;
import java.io.*;

public class send {
    public static void main(String[] argv)
        throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));   
            while (true) { 
                System.out.print("Command ?");
                String line_1 = br.readLine();
                DatagramSocket socket = new DatagramSocket();
                byte[] req = line_1.getBytes();
                DatagramPacket packet = new DatagramPacket(
                    req, req.length, InetAddress.getByName("192.168.0.21"), 10000);
                socket.send(packet);
            }
        }
}