B3311331313231311331322331333131133133313231133133313232233313131   >>    B331133131323131133132233133313113313331323113313331323223331313   <<    B3311331313231311331322331333131133133313231133133313232233313133   >>      B3311331313231311331322331333131133133313231133133313232233313132   >>