B3311331313231311331322331333132313231323331333131133133313221211113322331   >>    B331133131323131133132233133313231323132333133313113313331322121111332233   <<    B3311331313231311331322331333132313231323331333131133133313221211113322333   >>      B3311331313231311331322331333132313231323331333131133133313221211113322332   >>