The desktop of a rectangular writing desk is 120cm long and 65cm wide. What is the perimeter of this tabletop?
一张长方形写字台的桌面长120cm，宽65cm．这张桌面的周长是多少？
<gadget id="calculator">120 + 65</gadget>
<output>185</output>

<gadget id="calculator">185 * 2</gadget>
<output>370</output>

<result>370</result>