C3123121111331311213331333131133133313331333133313331313223331211   >>    C312312111133131121333133313113313331333133313331333131322333121   <<    C3123121111331311213331333131133133313331333133313331313223331213   >>      C3123121111331311213331333131133133313331333133313331313223331212   >>