A football field is a rectangle with a length of 105 meters and a width 58 meters less than its length. How many meters does the school need to paint white lines around the football field?
足球场是一个长方形，长105米，宽比长少58米．学校要在足球场的四周刷上白线，需要刷多少米？
<gadget id="calculator">105 - 58</gadget>
<output>47</output>

<gadget id="calculator">105 + 47</gadget>
<output>152</output>

<gadget id="calculator">152 * 2</gadget>
<output>304</output>

<result>304</result>