C11112331312111112111133133313331333133313123313331322332332311111   >>    C1111233131211111211113313331333133313331312331333132233233231111   <<    C11112331312111112111133133313331333133313123313331322332332311113   >>      C11112331312111112111133133313331333133313123313331322332332311112   >>