The school playground is a rectangle with a length of 85 meters and a width of 50 meters. The school is now planning to expand the length and width of the playground by 10 meters. What is the perimeter of the playground now?
学校操场是一个长方形，长85米，宽50米，学校现在准备将操场的长和宽都向外扩建10米．现在操场的周长是多少米？
<gadget id="calculator">85 + 10</gadget>
<output>95</output>

<gadget id="calculator">50 + 10</gadget>
<output>60</output>

<gadget id="calculator">95 + 60</gadget>
<output>155</output>

<gadget id="calculator">155 * 2</gadget>
<output>310</output>

<result>310</result>