It took 18 days for a batch of parts to be completed by 65 people. Now it needs to be completed 5 days ahead of schedule. How many more people are needed?
一批零件65人做18天完成，现在要提前5天完成，需要增加多少人？
<gadget id="calculator">65 * 18</gadget>
<output>1_170</output>

<gadget id="calculator">18 - 5</gadget>
<output>13</output>

<gadget id="calculator">1_170 / 13</gadget>
<output>90</output>

<gadget id="calculator">90 - 65</gadget>
<output>25</output>

<result>25</result>