B3311331313231311331322331333132313331322331323133313332321322321   >>    B331133131323131133132233133313231333132233132313331333232132232   <<    B3311331313231311331322331333132313331322331323133313332321322323   >>      B3311331313231311331322331333132313331322331323133313332321322322   >>