C3123121111113313121111331333133313311211113323213331322333123121   >>    C312312111111331312111133133313331331121111332321333132233312312   <<    C3123121111113313121111331333133313311211113323213331322333123123   >>      C3123121111113313121111331333133313311211113323213331322333123122   >>