B3311331313231311331322331333131133132333132333133313223313232213121
  >>
   B331133131323131133132233133313113313233313233313331322331323221312
  <<
   B3311331313231311331322331333131133132333132333133313223313232213123
  >>
 
 
 B3311331313231311331322331333131133132333132333133313223313232213122
  >>