import java.io.*;

public class Main
{
   public static void main(String [] args)
   {
      Reader r = new InputStreamReader(System.in);

      LineNumberReader lnr = new LineNumberReader(r);

      r = lnr;

      // For each pattern specified on the command line,
      //   create a StringPatternFilter instance for that
      //   pattern and link it into a chain.

      // When finished we have something that looks like:
      //         +---+  +---+     +---+
      //     r --|-o |--|-o |-...-|-o |--o System.in
      //         +---+  +---+     +---+
      //   connecting r all the way back to the original
      //   input stream.  Each stage attempts to match one
      //   of the patterns specified on the command line.

      for (int i = 0; i < args.length; i++)
      {
         r = new StringPatternFilter(r, args[i]);
      }

      // Create a PrintWriter to write to.

      Writer w = new PrintWriter(System.out);

      try
      {
         int c;

         // Read a character, write a character...

         while ((c = r.read()) > -1)
         {
            w.write(c);
            w.flush();
         }
      }
      catch (EndOfStream eos)
      {
         // We got end of stream!
      }
      catch (JunkMailException jme)
      {
         // We got junk mail!

         System.err.println("Line " + (lnr.getLineNumber() + 1) + ": " + jme);
         System.exit(1);
      }
      catch (IOException ioe)
      {
         ioe.printStackTrace(System.err);
      }
   }
}