C3123121111113313121111331333133313311211113313331333132332132322311   >>    C312312111111331312111133133313331331121111331333133313233213232231   <<    C3123121111113313121111331333133313311211113313331333132332132322313   >>      C3123121111113313121111331333133313311211113313331333132332132322312   >>