C3123121111331312121111331333133313331333121333133313331313223313111   >>    C312312111133131212111133133313331333133312133313331333131322331311   <<    C3123121111331312121111331333133313331333121333133313331313223313113   >>      C3123121111331312121111331333133313331333121333133313331313223313112   >>