What is the surface area in square centimeters of 3 small cubes whose sides are 1 centimeter long?
3个棱长是1厘米的正方体小方块排成一行后，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>