B3311331313231311331322331333132313232233132332132313331333132313331123221211
  >>
   B331133131323131133132233133313231323223313233213231333133313231333112322121
  <<
   B3311331313231311331322331333132313232233132332132313331333132313331123221213
  >>
 
 
 B3311331313231311331322331333132313232233132332132313331333132313331123221212
  >>