C3123121111113313121111331333133313223313331333131333131133132322233121   >>    C312312111111331312111133133313331322331333133313133313113313232223312   <<    C3123121111113313121111331333133313223313331333131333131133132322233123   >>      C3123121111113313121111331333133313223313331333131333131133132322233122   >>