C3123121111331311213331333131133133313331333133313331333133313331333112313231   >>    C312312111133131121333133313113313331333133313331333133313331333133311231323   <<    C3123121111331311213331333131133133313331333133313331333133313331333112313233   >>      C3123121111331311213331333131133133313331333133313331333133313331333112313232   >>