Use 12 small squares with a side length of 1 cm to form different rectangles. What is the smallest perimeter in cm?
用12个边长1厘米的小正方形拼成不同的长方形，其中周长最小的是多少厘米
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<result>14</result>