What is the surface area of a cuboid if 3 cubes with side lengths of 1 cm are glued together to form a cuboid?
3个棱长是1厘米的正方体小方块粘合成一个长方体，它的表面积是多少平方厘米．
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

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

<gadget id="calculator">14 * 1 * 1</gadget>
<output>14</output>

<result>14</result>