C3123121111331312121111331333133313331333121333133313331211113322311313221   >>    C312312111133131212111133133313331333133312133313331333121111332231131322   <<    C3123121111331312121111331333133313331333121333133313331211113322311313223   >>      C3123121111331312121111331333133313331333121333133313331211113322311313222   >>