B3311331313231311331322331333132313331322331323133313331323131213331323223221   >>    B331133131323131133132233133313231333132233132313331333132313121333132322322   <<    B3311331313231311331322331333132313331322331323133313331323131213331323223223   >>      B3311331313231311331322331333132313331322331323133313331323131213331323223222   >>