B3311331313231311331322331333132313231333131323223313231313311223221   >>    B331133131323131133132233133313231323133313132322331323131331122322   <<    B3311331313231311331322331333132313231333131323223313231313311223223   >>      B3311331313231311331322331333132313231333131323223313231313311223222   >>