B3311331313231311331322331333132233131133132233133313231331123231323221211
  >>
   B331133131323131133132233133313223313113313223313331323133112323132322121
  <<
   B3311331313231311331322331333132233131133132233133313231331123231323221213
  >>
 
 
 B3311331313231311331322331333132233131133132233133313231331123231323221212
  >>