A wooden cuboid wardrobe is 2 meters high, 0.8 meters long, and 0.4 meters wide. If you paint a layer of paint on the surface of the wardrobe, how many square meters is the painted area?
一个木制长方体大衣柜高2米，长0.8米，宽0.4米．如果在衣柜的表面刷一层漆，刷漆的面积是多少平方米？
<gadget id="calculator">2 * 0.8</gadget>
<output>1.6</output>

<gadget id="calculator">2 * 0.4</gadget>
<output>0.8</output>

<gadget id="calculator">0.8 * 0.4</gadget>
<output>0.32</output>

<gadget id="calculator">1.6 + 0.8 + 0.32</gadget>
<output>2.72</output>

<gadget id="calculator">2.72 * 2</gadget>
<output>5.44</output>

<result>5.44</result>