What is the volume of a cube surrounded by a wire with a length of 108 cm?
用一根长108cm的铁丝围成一个正方体，这个正方体的体积是多少？
<gadget id="calculator">108 / 12</gadget>
<output>9</output>

<gadget id="calculator">9 * 9 * 9</gadget>
<output>729</output>

<result>729</result>