C3123121111331312121111331333133313331333121333133313332233132221   >>    C312312111133131212111133133313331333133312133313331333223313222   <<    C3123121111331312121111331333133313331333121333133313332233132223   >>      C3123121111331312121111331333133313331333121333133313332233132222   >>