C111123313121111121111331333133313331323232133313331333133313311211113322333321   >>    C11112331312111112111133133313331333132323213331333133313331331121111332233332   <<    C111123313121111121111331333133313331323232133313331333133313311211113322333323   >>      C111123313121111121111331333133313331323232133313331333133313311211113322333322   >>