C11112331312111112111133133313331333133313223223313121111133112322331312311   >>    C1111233131211111211113313331333133313331322322331312111113311232233131231   <<    C11112331312111112111133133313331333133313223223313121111133112322331312313   >>      C11112331312111112111133133313331333133313223223313121111133112322331312312   >>