C13223313311212111133133313331333133313232233133313311231211113121   >>    C1322331331121211113313331333133313331323223313331331123121111312   <<    C13223313311212111133133313331333133313232233133313311231211113123   >>      C13223313311212111133133313331333133313232233133313311231211113122   >>