Li Hua participated in the summer camp from July 14th to August 5th. How many days did he go there?
李华7月14日至8月5日参加了夏令营活动，一共去了多少天．
<gadget id="calculator">31 - 14</gadget>
<output>17</output>

<gadget id="calculator">17 + 1 + 5</gadget>
<output>23</output>

<result>23</result>