C11112331312111112111133133313331333133313331333133313331323223331233231   >>    C1111233131211111211113313331333133313331333133313331333132322333123323   <<    C11112331312111112111133133313331333133313331333133313331323223331233233   >>      C11112331312111112111133133313331333133313331333133313331323223331233232   >>