B3311331313231311331322331333132313233313231333131133132322331312121
  >>
   B331133131323131133132233133313231323331323133313113313232233131212
  <<
   B3311331313231311331322331333132313233313231333131133132322331312123
  >>
 
 
 B3311331313231311331322331333132313233313231333131133132322331312122
  >>