C11112331312111112111133133313331333132323213331333133313332112113322121   >>    C1111233131211111211113313331333133313232321333133313331333211211332212   <<    C11112331312111112111133133313331333132323213331333133313332112113322123   >>      C11112331312111112111133133313331333132323213331333133313332112113322122   >>