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





public class EchoServer{
	public static void main(String[] args) throws IOException{
	ServerSocket serversocket = new ServerSocket(5000);
	
	Socket clientSocket = serversocket.accept();
	
	Scanner in = new Scanner(clientSocket.getInputStream());
	PrintWriter out	= new PrintWriter(clientSocket.getOutputStream(), true);
	
	String message = in.nextLine();
	
	out.println(message);
	
	clientSocket.close();
	
	serversocket.close();
	
	}
}