B3311331313231311331322331333131133133313231211331333132322333121
  >>
   B331133131323131133132233133313113313331323121133133313232233312
  <<
   B3311331313231311331322331333131133133313231211331333132322333123
  >>
 
 
 B3311331313231311331322331333131133133313231211331333132322333122
  >>