A warehouse is 7 meters long, 6 meters wide, and 3.5 meters high. Now it is necessary to paint its four walls and top surface (the doors and windows occupy 7.56 square meters). How many square meters is the painted area of this warehouse?
一间仓库，长7米，宽6米，高3.5米，现在要粉刷它的四面墙壁和顶面(其中门窗占7.56平方米)这间仓库的粉刷面积是多少平方米？
<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<gadget id="calculator">7 * 3.5</gadget>
<output>24.5</output>

<gadget id="calculator">6 * 3.5</gadget>
<output>21</output>

<gadget id="calculator">42 + 24.5 + 21</gadget>
<output>87.5</output>

<gadget id="calculator">87.5 * 2</gadget>
<output>175</output>

<gadget id="calculator">175 - 42 - 7.56</gadget>
<output>125.44</output>

<result>125.44</result>