Decorate a meeting room with a length of 10 meters, a width of 8 meters and a height of 4 meters, and paste wallpapers around the meeting room and the ceiling, deducting the area of doors and windows of 28 square meters. At least how many square meters of wallpaper is needed?
装修一间长10米，宽8米，高4米的会议室，在会议室的四周和顶棚贴上壁纸，扣除门窗面积28平方米．至少需要壁纸多少平方米？
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">80 + 32 + 40</gadget>
<output>152</output>

<gadget id="calculator">152 * 2</gadget>
<output>304</output>

<gadget id="calculator">304 - 80 - 28</gadget>
<output>196</output>

<result>196</result>