rectangular playground is 80 meters long and 20 meters longer than it is wide. If the length and width are increased by 40 meters respectively, what is the perimeter of the playground after the increase?
一个长方形操场，长是80米，长比宽多20米．如果长和宽分别增加40米，增加后操场的周长是多少？
<gadget id="calculator">80 + 40</gadget>
<output>120</output>

<gadget id="calculator">80 - 20</gadget>
<output>60</output>

<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<gadget id="calculator">120 + 100</gadget>
<output>220</output>

<gadget id="calculator">220 * 2</gadget>
<output>440</output>

<result>440</result>