C111123313121111121111331333133313331333131233133313311231211113313221123331   >>    C11112331312111112111133133313331333133313123313331331123121111331322112333   <<    C111123313121111121111331333133313331333131233133313311231211113313221123333   >>      C111123313121111121111331333133313331333131233133313311231211113313221123332   >>