Cut a cube with an edge length of 30 decimeters into the largest cylinder. What is the volume of the shaved part in cubic decimeters?
把一个棱长为30分米的正方体削成一个最大的圆柱体．削去部分的体积是多少立方分米？
<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>