C:\test>anonBinTreeDumper.pl
    _____________________________/\______________________________________________________________________________________
  _/\___________________                                                             ___________________________________/\
 /\           _________/\_______                     _______________________________/\_______________________________    Z
a b     _____/\_______    _____/\               ____/\_____________________                          _______________/\_
      _/\___    _____/\  /\_    q           ___/\      ___________________/\_______            _____/\_               /\
     /\   _/\  /\_    l m  /\_            _/\_ _/     /\___                    ___/\   _______/\___   /\_________    X Y
    c d  /\ g h  /\_      n  /\     _____/\  //\     1   _/\___              _/\_  G  /\_____    _/\ P         _/\_
        e f     i  /\       o p    /\___  v wyxz        /\   _/\_______     /\  /\   H   ___/\  /\ O       ___/\  /\
                  j k             r   _/\              2 3  /\   _____/\_  C D E F      /\_  L M N       _/\_  U V W
                                     /\ u                  4 5  /\_     /\             I  /\            /\  /\
                                    s t                        6  /\_  A B               J K           Q R S T
                                                                 7  /\
                                                                   8 9