import java.io.DataOutputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
class ServerSocketDemo {
public static void main(String args[]) throws Exception {
int port = Integer.parseInt(args[0]);
ServerSocket ss = new ServerSocket(port);
while (true) {
Socket s = ss.accept();
OutputStream os = s.getOutputStream();
DataOutputStream dos = new DataOutputStream(os);
dos.writeInt(1);
s.close();
}
}
}