C3123121111331312121111331333133313331333121333131133132231132321   >>    C312312111133131212111133133313331333133312133313113313223113232   <<    C3123121111331312121111331333133313331333121333131133132231132323   >>      C3123121111331312121111331333133313331333121333131133132231132322   >>