import java.io.*;
import java.net.*;
import java.util.Vector;
public class Jututuba2{
  static Vector kasutajad=new Vector();
  public static void main(String argumendid[]) throws IOException{
    ServerSocket ss=new ServerSocket(3001);
    while(true){
      kasutajad.add(new Loim(ss.accept()));
    }
  }

 static class Loim extends Thread{
  protected Socket sc;
  PrintWriter valja;
  String kasutajanimi;
  public Loim(Socket uus_sc){
   try{
    sc=uus_sc;
    valja=new PrintWriter(sc.getOutputStream(), true);
    start();
   }catch(Exception e){e.printStackTrace();}
  }
  public void run(){
    try{
      BufferedReader sisse=new BufferedReader(
        new InputStreamReader(sc.getInputStream())
      );
      boolean veel=true;
      while(veel){
         String rida=sisse.readLine();
         System.out.println(rida);
         if(rida.startsWith(".ots"))veel=false;
         for(int i=0; i<kasutajad.size(); i++){
           ((Loim)kasutajad.elementAt(i)).valja.println(rida);
         }
      }
      sc.close();
    } catch(Exception e){
      System.out.println("Probleem: "+e);
    }
    kasutajad.remove(this);
  }
 }
}