Websites A, B, and C are updated regularly, and website A is updated every other day; website B is updated every two days, and website C is updated every three days. In a week, how many times can the three websites be updated at most.
甲、乙、丙三个网站定期更新，甲网站每隔一天更新1次；乙网站每隔两天更新1次，丙网站每隔三天更新1次．在一个星期内，三个网站最多更新多少次．
<gadget id="calculator">4 + 3 + 2</gadget>
<output>9</output>

<result>9</result>