C11112331312111112111133133313331333132323213331333133112111323331312331   >>    C1111233131211111211113313331333133313232321333133313311211132333131233   <<    C11112331312111112111133133313331333132323213331333133112111323331312333   >>      C11112331312111112111133133313331333132323213331333133112111323331312332   >>