B3311331313231311331322331333132313232233132313133313331323132313221121121   >>    B331133131323131133132233133313231323223313231313331333132313231322112112   <<    B3311331313231311331322331333132313232233132313133313331323132313221121123   >>      B3311331313231311331322331333132313232233132313133313331323132313221121122   >>