The school has to paint the classrooms. It is known that the length of the classroom is 10m, the width is 7m, and the height is 4m. Now it is necessary to paint the four walls and the top of the classroom, and deduct the door and window area of 12m**2. How many square meters is the area that needs to be painted?
学校要粉刷教室．已知教室的长是10m，宽是7m，高是4m，现在要把这个教室的四壁和顶面粉刷涂料，扣除门窗面积12m**2．需要粉刷的面积是多少平方米？
<gadget id="calculator">10 * 7</gadget>
<output>70</output>

<gadget id="calculator">10 * 4 * 2</gadget>
<output>80</output>

<gadget id="calculator">7 * 4 * 2</gadget>
<output>56</output>

<gadget id="calculator">56 - 12</gadget>
<output>44</output>

<gadget id="calculator">70 + 80 + 44</gadget>
<output>194</output>

<result>194</result>