Library {
  public static void main(String args[]) throws Exception {{
    Library m = parse(System.in);
    edu.neu.ccs.demeter.dj.ClassGraph cg = 
      new edu.neu.ccs.demeter.dj.ClassGraph(true,false);
    edu.neu.ccs.demeter.dj.TraversalGraph tg = 
      new edu.neu.ccs.demeter.dj.TraversalGraph("from Library to ISBN", cg);
    System.out.println(tg.gather(m));
  }}
}