C13223313311212111133133313331333133313232233133313311211111211113321123121   >>    C1322331331121211113313331333133313331323223313331331121111121111332112312   <<    C13223313311212111133133313331333133313232233133313311211111211113321123123   >>      C13223313311212111133133313331333133313232233133313311211111211113321123122   >>