C11112331312111112111133133313331333132323213331333133313311221312112223331   >>    C1111233131211111211113313331333133313232321333133313331331122131211222333   <<    C11112331312111112111133133313331333132323213331333133313311221312112223333   >>      C11112331312111112111133133313331333132323213331333133313311221312112223332   >>