The length of a classroom is 10 meters, the width is 6 meters, the height is 3 meters, and the area of doors and windows is 8 square meters. Now we need to paint the walls and ceiling of this room. If 2 kilograms of paint is needed per square meter, how many kilograms of paint are needed in total?
一个教室的长10米，宽6米，高3米，门窗面积是8平方米．现在要把这个房间的四壁和顶面粉刷涂料，如果每平方米需要涂料2千克，一共要涂料多少千克？
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">60 + 30 + 18</gadget>
<output>108</output>

<gadget id="calculator">108 * 2</gadget>
<output>216</output>

<gadget id="calculator">216 - 8</gadget>
<output>208</output>

<gadget id="calculator">208 * 2</gadget>
<output>416</output>

<result>416</result>