What is the volume of a cube made of a wire 84 cm long, in cubic centimetres?
用一根长84厘米的铁丝正好做成一个正方体，这个正方体的体积是多少立方厘米．
<gadget id="calculator">84 / 12</gadget>
<output>7</output>

<gadget id="calculator">7 * 7 * 7</gadget>
<output>343</output>

<result>343</result>