B3311331313231311331322331333132313331322121133133313113313231311233132323221   >>    B331133131323131133132233133313231333132212113313331311331323131123313232322   <<    B3311331313231311331322331333132313331322121133133313113313231311233132323223   >>      B3311331313231311331322331333132313331322121133133313113313231311233132323222   >>