C11112331312111112111133133313331333132323213331333133313311212111111211111   >>    C1111233131211111211113313331333133313232321333133313331331121211111121111   <<    C11112331312111112111133133313331333132323213331333133313311212111111211113   >>      C11112331312111112111133133313331333132323213331333133313311212111111211112   >>