C11112331312111112111133133313331333132323213331333133313331311331122112312311   >>    C1111233131211111211113313331333133313232321333133313331333131133112211231231   <<    C11112331312111112111133133313331333132323213331333133313331311331122112312313   >>      C11112331312111112111133133313331333132323213331333133313331311331122112312312   >>