A cube of wood with an edge length of 2 decimeters is cut into a cylinder with the largest volume, how many cubic decimeters of wood will be cut off?
一个棱长为2分米的正方体木料，将它切削成一个体积最大的圆柱，要切削去的木料是多少立方分米？
<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1 * 2</gadget>
<output>6.28</output>

<gadget id="calculator">8 - 6.28</gadget>
<output>1.72</output>

<result>1.72</result>