C3123121111331312121111331333133313331333121333133313332233132222211   >>    C312312111133131212111133133313331333133312133313331333223313222221   <<    C3123121111331312121111331333133313331333121333133313332233132222213   >>      C3123121111331312121111331333133313331333121333133313332233132222212   >>