C11112331312111112111133133313331333133313331333133313223313232231111   >>    C1111233131211111211113313331333133313331333133313331322331323223111   <<    C11112331312111112111133133313331333133313331333133313223313232231113   >>      C11112331312111112111133133313331333133313331333133313223313232231112   >>