C3123121111331312121111331333133313331333121333131133132322233111   >>    C312312111133131212111133133313331333133312133313113313232223311   <<    C3123121111331312121111331333133313331333121333131133132322233113   >>      C3123121111331312121111331333133313331333121333131133132322233112   >>