C111123313121111121111331333133313331333133313331333133312111133121231   >>    C11112331312111112111133133313331333133313331333133313331211113312123   <<    C111123313121111121111331333133313331333133313331333133312111133121233   >>      C111123313121111121111331333133313331333133313331333133312111133121232   >>