import java.io.*;
import Server.*;

public class SquareServer {
    public static void main(String[] args) {

        (new Server(21212,
             new ClientHandlerFactory() {
                public ServerBehavior getNewClientHandler() {
                    return new ServerBehaviorAdapter() {
                        public void run() {
                            try {
                                DataOutputStream dos = nwe DataOutputStream(dos);
                                DataInputStream dis = new DataInputStream(is);
                                while (true) {
                                   int i = dis.readInt();
                                   dos.writeInt(i*i);
                                }
                            } catch (IOException e) {
                                closeSocket();
                            }
                        }
                    };
                }
             })
          ).start();
    }
}