C11112331312111112111133133313331333133313331333133313331323311331312311   >>    C1111233131211111211113313331333133313331333133313331333132331133131231   <<    C11112331312111112111133133313331333133313331333133313331323311331312313   >>      C11112331312111112111133133313331333133313331333133313331323311331312312   >>