B3311331313231311331322331333131133133313232112311331333133313113313232221121   >>    B331133131323131133132233133313113313331323211231133133313331311331323222112   <<    B3311331313231311331322331333131133133313232112311331333133313113313232221123   >>      B3311331313231311331322331333131133133313232112311331333133313113313232221122   >>