B3311331313231311331322331333132313133313113313113313232233132313222211
  >>
   B331133131323131133132233133313231313331311331311331323223313231322221
  <<
   B3311331313231311331322331333132313133313113313113313232233132313222213
  >>
 
 
 B3311331313231311331322331333132313133313113313113313232233132313222212
  >>