C13223313311212111133133313331333133313232233133313121111331333112211231   >>    C1322331331121211113313331333133313331323223313331312111133133311221123   <<    C13223313311212111133133313331333133313232233133313121111331333112211233   >>      C13223313311212111133133313331333133313232233133313121111331333112211232   >>