C3123121111331312121111331333133313331333121333132313331333131133132213112121   >>    C312312111133131212111133133313331333133312133313231333133313113313221311212   <<    C3123121111331312121111331333133313331333121333132313331333131133132213112123   >>      C3123121111331312121111331333133313331333121333132313331333131133132213112122   >>