B3311331313231311331322331333132313232233131323132313331323132322131121211
  >>
   B331133131323131133132233133313231323223313132313231333132313232213112121
  <<
   B3311331313231311331322331333132313232233131323132313331323132322131121213
  >>
 
 
 B3311331313231311331322331333132313232233131323132313331323132322131121212
  >>