What is the surface area of a cuboid by assembling 5 cubes of 3 cm side length into a cuboid?
把5个棱长3厘米的正方体木块拼成一个长方体，这个长方体的表面积是多少．
<gadget id="calculator">3 * 3 * 6 * 5</gadget>
<output>270</output>

<gadget id="calculator">3 * 3 * 8</gadget>
<output>72</output>

<gadget id="calculator">270 - 72</gadget>
<output>198</output>

<result>198</result>