A sports meeting starts on August 8 and ends on September 3. How many days did the sports meeting last?
某运动会从8月8日开幕，到9月3日闭幕，这次运动会一共进行了多少天．
<gadget id="calculator">31 - 8</gadget>
<output>23</output>

<gadget id="calculator">23 + 1 + 3</gadget>
<output>27</output>

<result>27</result>