A warehouse is 25 meters long, 18 meters wide, and 3.5 meters high. The roof and four walls of the warehouse need to be painted, and the area of the windows and the warehouse door is 23 square meters. How many square meters is the area to be painted?
一间仓库的长是25米，宽是18米，高是3.5米．要粉刷仓库的房顶和四面墙壁，出去窗户和仓库大门面积23平方米，要粉刷的面积是多少平方米？
<gadget id="calculator">25 * 18</gadget>
<output>450</output>

<gadget id="calculator">25 * 3.5</gadget>
<output>87.5</output>

<gadget id="calculator">18 * 3.5</gadget>
<output>63</output>

<gadget id="calculator">87.5 + 63</gadget>
<output>150.5</output>

<gadget id="calculator">150.5 * 2</gadget>
<output>301</output>

<gadget id="calculator">301 - 23</gadget>
<output>278</output>

<gadget id="calculator">450 + 278</gadget>
<output>728</output>

<result>728</result>