C11112331312111112111133133313331333132323213331333133323212331   >>    C1111233131211111211113313331333133313232321333133313332321233   <<    C11112331312111112111133133313331333132323213331333133323212333   >>      C11112331312111112111133133313331333132323213331333133323212332   >>