// This code is provided "as is" with NO WARRANTY expressed or 
// implied. You may use it freely at your own risk.

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

public class Bounce {


   static int getContentLen(String line) throws NumberFormatException {
      String l = line.substring(line.indexOf(": ") + 2 );
      return (Integer.parseInt(l));
   }

  public static void main(String args[]) {
    try {
      int port = Integer.parseInt(args[0]);
      ServerSocket ss = new ServerSocket(port);
      for(;;) {
        Socket client = ss.accept();
        BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
        PrintWriter out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));

        out.println("HTTP/1.0 200 ");             
        out.println("Content-Type: text/plain"); 
        out.println();                          
        String line;
        int cLen = 0;
        while ((line = in.readLine()) != null) {
          out.println(line);
            if (line.indexOf("ength: ") >= 0) {
             cLen = Bounce.getContentLen(line);
          }
          if (line.length() == 0) break;
        }
        if (cLen > 0) {
           char[] buffer = new char[cLen];
         in.read(buffer, 0, cLen);
         line = new String(buffer);
         out.println(line);
        }
        out.flush();
        out.close();
        in.close();
        client.close();
      }
    }
    catch (NumberFormatException n) {
      System.err.println(n);
    }
    catch (Exception e) {
      System.err.println(e);
    }
  }
  

}