Cut a cube of wood with an edge length of 10 decimeters into the largest cylinder of wood, what is the volume of the cylinder of wood?
把一个棱长是10分米的正方体木料削成一个最大的圆柱体木料，圆柱体木料的体积是多少．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 10</gadget>
<output>785</output>

<result>785</result>