What is the surface area of three cubes whose sides are 1 cm long?
三个棱长为1厘米的正方体排成一行，它的表面积是多少平方厘米
<gadget id="calculator">1 * 1 * 6 * 3</gadget>
<output>18</output>

<gadget id="calculator">1 * 1 * 4</gadget>
<output>4</output>

<gadget id="calculator">18 - 4</gadget>
<output>14</output>

<result>14</result>