cuboid can be cut into two cubes whose sides are 3 cm long. What is the surface area of this cuboid?
一个长方体正好可以切成两个棱长是3厘米的正方体，这个长方体的表面积是多少？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">18 + 18 + 9</gadget>
<output>45</output>

<gadget id="calculator">45 * 2</gadget>
<output>90</output>

<result>90</result>