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


public class Server {

	public static void main(String[] args) throws IOException {
		
		ServerSocket server = new ServerSocket(9000);
		
		Socket client = server.accept();
		
		PrintWriter output = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
		BufferedReader input = new BufferedReader(new InputStreamReader(client.getInputStream()));
		
		output.println("CONNECTED"); output.flush();
		
		String ric = "";
		
		while(!ric.equalsIgnoreCase("CLOSE")){
			ric = input.readLine();
			output.println("RECEIVED: " + ric); output.flush();
		}

		client.close();
		server.close();
		
	}

}