B3311331313231311331322331333132313231333131323223313331323133112233221
  >>
   B331133131323131133132233133313231323133313132322331333132313311223322
  <<
   B3311331313231311331322331333132313231333131323223313331323133112233223
  >>
 
 
 B3311331313231311331322331333132313231333131323223313331323133112233222
  >>