Cut a cube of wood with an edge length of 30 cm into the largest cylinder. What is the volume of the chipped wood block?
把一块棱长为30厘米的正方体木块削成一个最大的圆柱．削去的木块体积是多少？
<gadget id="calculator">30 * 30 * 30</gadget>
<output>27_000</output>

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">15 ** 2</gadget>
<output>225</output>

<gadget id="calculator">3.14 * 225 * 30</gadget>
<output>21_195</output>

<gadget id="calculator">27_000 - 21_195</gadget>
<output>5_805</output>

<result>5_805</result>