///////////////////////////////////////////////////////////////////////////
/*
  Copyright 2001 Ronald S. Burkey

  This file is part of GutenMark.

  GutenMark is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  GutenMark is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with GutenMark; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  Filename:	NoDups.c
  Purpose:	Eliminate duplicate lines from a sorted ASCII file.
  Mods:		12/18/01 RSB	Began.
*/
///////////////////////////////////////////////////////////////////////////

#include <stdio.h>
#include <string.h>

char s[1000], ss[1000];

int
main (void)
{
  while (NULL != fgets (s, sizeof (s), stdin))
    if (strcmp (s, ss))
      {
	printf ("%s", s);
	strcpy (ss, s);
      }
  return (0);
}