C11112331312111112111133133313331333133313223223313121111121111111133211   >>    C1111233131211111211113313331333133313331322322331312111112111111113321   <<    C11112331312111112111133133313331333133313223223313121111121111111133213   >>      C11112331312111112111133133313331333133313223223313121111121111111133212   >>