After cutting a rectangle with a length of 16 cm and a width of 12 cm and cutting out the largest square, what is the perimeter of the remaining rectangle in cm?
把一张长16厘米，宽12厘米的长方形，剪下一个最大的正方形后，剩下的长方形的周长是多少厘米．
<gadget id="calculator">16 - 12</gadget>
<output>4</output>

<gadget id="calculator">12 + 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<result>32</result>