C11112331312111112111133133313331333133313223223313121111332131   >>    C1111233131211111211113313331333133313331322322331312111133213   <<    C11112331312111112111133133313331333133313223223313121111332133   >>      C11112331312111112111133133313331333133313223223313121111332132   >>