Weld a 72 cm long iron wire into a cube frame (there is no wire left), and wrap its surface with paper. What is the surface area of the cube?
用一根长72厘米的铁丝焊接成一个正方体框架，(铁丝没有剩余)，并用纸将其表面包起来，这个正方体的表面积是多少？
<gadget id="calculator">72 / 12</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<result>216</result>