B3311331313231311331322331333131133133313111333133313331322121111133313113212121
  >>
   B331133131323131133132233133313113313331311133313331333132212111113331311321212
  <<
   B3311331313231311331322331333131133133313111333133313331322121111133313113212123
  >>
 
 
 B3311331313231311331322331333131133133313111333133313331322121111133313113212122
  >>