This year's summer vacation starts from July 6th and ends on September 1st. How many days are there in total?
今年的暑假从7月6日开始放，到9月1日开学，暑假一共放多少天．
<gadget id="calculator">31 - 6</gadget>
<output>25</output>

<gadget id="calculator">25 + 1 + 31</gadget>
<output>57</output>

<result>57</result>