A cuboid can be cut into 3 identical cubes. After cutting, the surface area of each cube is 12 square centimeters. What is the surface area of the original cuboid in square centimeters?
一个长方体正好可以切成3个一样的正方体，切开后每个正方体的表面积是12平方厘米，那么原来这个长方体的表面积是多少平方厘米．
<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">36 - 8</gadget>
<output>28</output>

<result>28</result>