B3311331313231311331322331333131133133313231133133313231311331323221121   >>    B331133131323131133132233133313113313331323113313331323131133132322112   <<    B3311331313231311331322331333131133133313231133133313231311331323221123   >>      B3311331313231311331322331333131133133313231133133313231311331323221122   >>