From August 25th to September 30th, how many days are there in total?
从8月25日到9月30日，一共有多少天．
<gadget id="calculator">31 - 25</gadget>
<output>6</output>

<gadget id="calculator">6 + 1 + 30</gadget>
<output>37</output>

<result>37</result>