A cuboid block with a length of 50 cm, a width of 40 cm, and a height of 30 cm is processed into the largest conical block of wood. What is the volume of the cone?
一个长50厘米、宽40厘米、高30厘米的长方体木块，加工成最大的圆锥形木块，圆锥的体积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 ** 2</gadget>
<output>400</output>

<gadget id="calculator">(1/3) * 3.14 * 400 * 30</gadget>
<output>12_560</output>

<result>12_560</result>