import java.io.*;

    class EndOfLine
      {
      public static void main (String[] args)
        {
        String s;
        String sEndOfLine;
        FileReader fr;
        FileWriter fw;
        LineNumberReader lnr;


        if (args.length < 2)
          {
          System.out.println ("Format: java EndOfLine infile unix|mac|pc");
          System.exit (1);
          }

        try
          {
          fr = new FileReader (args[0]);
          lnr = new LineNumberReader (fr);
          fw = new FileWriter (args[0] + "." + args[1]);

          if (args[1].equals ("unix"))
            {
            sEndOfLine = "\n";
            }
          else if (args[1].equals ("mac"))
            {
            sEndOfLine = "\r";
            }
          else 
            {
            sEndOfLine = "\r\n";
            }

          while ((s = lnr.readLine ()) != null)
            {
            fw.write (s + sEndOfLine);
            }

          lnr.close ();
          fw.close ();
          }
        catch (Exception e)
          {
          System.out.println ("Exception: " + e);
          }
        }
      }