classroom is 12 meters long, 8 meters wide, and 4 meters high. How many square meters does the classroom cover? Now it is necessary to paint its surroundings and top surface with paint, and the area after deducting the doors, windows and blackboard is 32 square meters. How big is the area for painting?
一间教室长12米，宽8米，高4米，教室占地面积多少平方米？现在要用涂料粉刷它的四周和顶面，扣除门窗和黑板的面积32平方米，粉刷涂料的面积有多大？
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">96 - 32</gadget>
<output>64</output>

<gadget id="calculator">160 + 64</gadget>
<output>224</output>

<result>224</result>