C111123313121111121111331333133313331331121111133313331333133313113313221333121   >>    C11112331312111112111133133313331333133112111113331333133313331311331322133312   <<    C111123313121111121111331333133313331331121111133313331333133313113313221333123   >>      C111123313121111121111331333133313331331121111133313331333133313113313221333122   >>