B3311331313231311331322331333132313331323331312111133132322331323223311211311   >>    B331133131323131133132233133313231333132333131211113313232233132322331121131   <<    B3311331313231311331322331333132313331323331312111133132322331323223311211313   >>      B3311331313231311331322331333132313331323331312111133132322331323223311211312   >>