C3123121111331312121111331333133313331333121333131133133313331121123213221   >>    C312312111133131212111133133313331333133312133313113313331333112112321322   <<    C3123121111331312121111331333133313331333121333131133133313331121123213223   >>      C3123121111331312121111331333133313331333121333131133133313331121123213222   >>