What is the perimeter of a rectangle with a length of 32 meters and a width of 20 meters?
长是32米，宽是20米的长方形周长是多少米．
<gadget id="calculator">32 + 20</gadget>
<output>52</output>

<gadget id="calculator">52 * 2</gadget>
<output>104</output>

<result>104</result>