Put together 6 small cubes with a side length of 3 cm to form a cuboid, what is the largest surface area in square centimeters?
把6个棱长为3厘米的正方体小木块拼成一个长方体，其中表面积最大的是多少平方厘米？
<gadget id="calculator">3 * 6</gadget>
<output>18</output>

<gadget id="calculator">18 * 3 * 4</gadget>
<output>216</output>

<gadget id="calculator">3 * 3 * 2</gadget>
<output>18</output>

<gadget id="calculator">216 + 18</gadget>
<output>234</output>

<result>234</result>