C111123313121111121111331333133313331323232133313331333121111331333133323231211   >>    C11112331312111112111133133313331333132323213331333133312111133133313332323121   <<    C111123313121111121111331333133313331323232133313331333121111331333133323231213   >>      C111123313121111121111331333133313331323232133313331333121111331333133323231212   >>