If the sum of the sides of a cube is 24 decimeters, what is its surface area in square decimeters?
一个正方体的棱长之和是24分米，它的表面积是多少平方分米．
<gadget id="calculator">24 / 12</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>