C3123121111331311213331333131133133313331333133313331333133313231333131323111   >>    C312312111133131121333133313113313331333133313331333133313331323133313132311   <<    C3123121111331311213331333131133133313331333133313331333133313231333131323113   >>      C3123121111331311213331333131133133313331333133313331333133313231333131323112   >>