C3123121111331311213331333131133133313331333133313331331121111123313221   >>    C312312111133131121333133313113313331333133313331333133112111112331322   <<    C3123121111331311213331333131133133313331333133313331331121111123313223   >>      C3123121111331311213331333131133133313331333133313331331121111123313222   >>