C111123313121111121111331333133313331333133313331333133112111113232233231   >>    C11112331312111112111133133313331333133313331333133313311211111323223323   <<    C111123313121111121111331333133313331333133313331333133112111113232233233   >>      C111123313121111121111331333133313331333133313331333133112111113232233232   >>