C11112331312111112111133133313331333133313223223313121111121111112332332321   >>    C1111233131211111211113313331333133313331322322331312111112111111233233232   <<    C11112331312111112111133133313331333133313223223313121111121111112332332323   >>      C11112331312111112111133133313331333133313223223313121111121111112332332322   >>