B3311331313231311331322331333132313331322121133133313113313231321111   >>    B331133131323131133132233133313231333132212113313331311331323132111   <<    B3311331313231311331322331333132313331322121133133313113313231321113   >>      B3311331313231311331322331333132313331322121133133313113313231321112   >>