B3311331313231311331322331333131133133313233213132313233313232212121
  >>
   B331133131323131133132233133313113313331323321313231323331323221212
  <<
   B3311331313231311331322331333131133133313233213132313233313232212123
  >>
 
 
 B3311331313231311331322331333131133133313233213132313233313232212122
  >>