C11112331312111112111133133313331333132323213331333133313332121333123331   >>    C1111233131211111211113313331333133313232321333133313331333212133312333   <<    C11112331312111112111133133313331333132323213331333133313332121333123333   >>      C11112331312111112111133133313331333132323213331333133313332121333123332   >>