B331133131323131133132233133313231323223313132313231333132313232213121
  >>
   B33113313132313113313223313331323132322331313231323133313231323221312
  <<
   B331133131323131133132233133313231323223313132313231333132313232213123
  >>
 
 
 B331133131323131133132233133313231323223313132313231333132313232213122
  >>