C11112331312111112111133133313331333133313223223313121111331322133313112111   >>    C1111233131211111211113313331333133313331322322331312111133132213331311211   <<    C11112331312111112111133133313331333133313223223313121111331322133313112113   >>      C11112331312111112111133133313331333133313223223313121111331322133313112112   >>