If 3 cubes with side lengths of 1 meter are used to form a cuboid, what is the surface area of the cuboid in square meters?
用棱长是1米的3个正方体拼成一个长方体，拼成长方体的表面积是多少平方米．
<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>