The radius of the bottom of the cylinder is increased by 5 times, the height is reduced by 5 times, and the volume is increased by how many times
圆柱底面半径扩大5倍，高缩小5倍，体积扩大多少倍
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">25 / 5</gadget>
<output>5</output>

<result>5</result>