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

class EchoClientThread extends Thread {
  private Socket socket;
  private BufferedReader in;
  private PrintWriter out;
  private static int counter = 0;
  private int id = ++counter;
  private static int threadcount = 0;
  public static int threadCount() { 
    return threadcount; 
  }
  public EchoClientThread(InetAddress addr, int PORT) {
    System.out.println("Making client " + id);
    threadcount++;
    try {
      socket = new Socket(addr, PORT);
    } catch(IOException e) {
      System.err.println("Socket failed");
    }
    try {    
      in = new BufferedReader( new InputStreamReader(
            socket.getInputStream()));
      // Enable auto-flush:
      out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(
              socket.getOutputStream())), true);
      start();
    } catch(IOException e) {
      try {
        socket.close();
      } catch(IOException e2) {
        System.err.println("Socket not closed");
      }
    }
  }
  public void run() {
    try {
      for(int i = 1; i <= 5; i++) {
        out.println("Client " + id + ": " + i);
        String str = in.readLine();
        System.out.println(str);
        try {
               sleep(10000);
        } catch(InterruptedException e) {

               System.err.println("Interrupted");

        }


      }
      out.println("END");
    } catch(IOException e) {
      System.err.println("IO Exception");
    } finally {
      // Always close it:
      try {
        socket.close();
      } catch(IOException e) {
        System.err.println("Socket not closed");
      }
      threadcount--; // Ending this thread
    }
  }
}

public class MultiEchoClient {
  static final int MAX_THREADS = 5;
  public static void main(String[] args) 
      throws IOException, InterruptedException {
    InetAddress addr = InetAddress.getByName(args[0]);
    int Sport = Integer.parseInt(args[1]);
    while(true) {
      if(EchoClientThread.threadCount() < MAX_THREADS)
        new EchoClientThread(addr, Sport);
      Thread.currentThread().sleep(1000);
    }
  }
}