C3123121111113313121111331333133313223313331333133313222321312311   >>    C312312111111331312111133133313331322331333133313331322232131231   <<    C3123121111113313121111331333133313223313331333133313222321312313   >>      C3123121111113313121111331333133313223313331333133313222321312312   >>