B3311331313231311331322331333132322331323331133132313232223132322321   >>    B331133131323131133132233133313232233132333113313231323222313232232   <<    B3311331313231311331322331333132322331323331133132313232223132322323   >>      B3311331313231311331322331333132322331323331133132313232223132322322   >>