A classroom is 12 meters long, 8 meters wide, and 4 meters high. It is necessary to paint the surrounding and top surfaces of the classroom, excluding the door and window area of 20 square meters. If the manual fee is 4 yuan per square meter, how much is the manual fee?
一间教室长12米，宽8米，高4米，要粉刷教室的四周和顶面，除去门窗面积20平方米，如果每平方米付手工费4元，需付手工费多少元？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 4 * 2</gadget>
<output>96</output>

<gadget id="calculator">8 * 4 * 2</gadget>
<output>64</output>

<gadget id="calculator">64 - 20</gadget>
<output>44</output>

<gadget id="calculator">96 + 96 + 44</gadget>
<output>236</output>

<gadget id="calculator">236 * 4</gadget>
<output>944</output>

<result>944</result>