C111123313121111121111331333133313221333131121211113313223331231   >>    C11112331312111112111133133313331322133313112121111331322333123   <<    C111123313121111121111331333133313221333131121211113313223331233   >>      C111123313121111121111331333133313221333131121211113313223331232   >>