The sum of the sides of a cube is 12cm, what is its surface area in cm_{}**2.
一个正方体的棱长之和是12cm，它的表面积是多少cm_{}**2．
<gadget id="calculator">12 / 12</gadget>
<output>1</output>

<gadget id="calculator">1 * 1 * 6</gadget>
<output>6</output>

<result>6</result>