C13223313311212111133133313331333133313232233133313331333323121   >>    C1322331331121211113313331333133313331323223313331333133332312   <<    C13223313311212111133133313331333133313232233133313331333323123   >>      C13223313311212111133133313331333133313232233133313331333323122   >>