A cuboid with a length of 8 cm, a width of 5 cm, and a height of 4 cm is cut into a cylinder. What is the maximum volume of the cylinder in cubic centimeters?
将一个长8厘米，宽是5厘米，高4厘米的长方体削成圆柱，圆柱的体积最大是多少立方厘米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 8</gadget>
<output>100.48</output>

<result>100.48</result>