C11112331312111112111133133313331333132323213331333133313112331313232232111211   >>    C1111233131211111211113313331333133313232321333133313331311233131323223211121   <<    C11112331312111112111133133313331333132323213331333133313112331313232232111213   >>      C11112331312111112111133133313331333132323213331333133313112331313232232111212   >>