One side of a parallelogram is 12 cm long and 2 cm shorter than the adjacent side. What is the perimeter of the parallelogram in cm?
一个平行四边形的一条边长12厘米，比邻边少2厘米，这个平行四边形的周长是多少厘米？
<gadget id="calculator">12 + 2</gadget>
<output>14</output>

<gadget id="calculator">12 + 14</gadget>
<output>26</output>

<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<result>52</result>