B3311331313231311331322331333132313132313331323223313133313331323133313331323233211
  >>
   B331133131323131133132233133313231313231333132322331313331333132313331333132323321
  <<
   B3311331313231311331322331333132313132313331323223313133313331323133313331323233213
  >>
 
 
 B3311331313231311331322331333132313132313331323223313133313331323133313331323233212
  >>