B3311331313231311331322331333131133133313231133133313232233112113121   >>    B331133131323131133132233133313113313331323113313331323223311211312   <<    B3311331313231311331322331333131133133313231133133313232233112113123   >>      B3311331313231311331322331333131133133313231133133313232233112113122   >>