There is a magic stone on the magic ground, which keeps growing evenly upwards. In order to prevent it from piercing the sky, the elders of the fairyland decided to send plant warriors to suck the magic stone to restrain its growth. Each plant warrior sucks the same amount every day. Warriors, the magic stone will pierce the sky after 16 days; if you send 15 plant fighters, the magic stone will pierce the sky after 24 days, at least how many plant fighters you send to ensure that the sky will not be pierced.
魔地上有一块魔石，不断向上均匀生长，为避免它把天捅破，仙界长老决定派出植物战士吸食魔石，抑制它的生长，每名植物战士每天吸食的量相同，如果派出14名植物战士，16天后魔石就会把天捅破；如果派出15名植物战士，24天后魔石就会把天捅破，至少派出多少名植物战士，才能保证天不会被捅破．
<gadget id="calculator">15 * 24</gadget>
<output>360</output>

<gadget id="calculator">14 * 16</gadget>
<output>224</output>

<gadget id="calculator">360 - 224</gadget>
<output>136</output>

<gadget id="calculator">24 - 16</gadget>
<output>8</output>

<gadget id="calculator">136 / 8 / 1</gadget>
<output>17</output>

<result>17</result>