B3311331313231311331322331333131133132333132333133313223313231323131232323211
  >>
   B331133131323131133132233133313113313233313233313331322331323132313123232321
  <<
   B3311331313231311331322331333131133132333132333133313223313231323131232323213
  >>
 
 
 B3311331313231311331322331333131133132333132333133313223313231323131232323212
  >>