A cuboid wooden box has a length of 12 decimeters, a width of 18 decimeters, and a height of 6.5 decimeters. If the surface of the box is painted with paint (the ground is not painted), how many square decimeters is the painted area?
一个长方体木箱，长12分米，宽18分米，高6.5分米，如果把它的表面涂上漆(地面不涂)涂漆的面积有多少平方分米？
<gadget id="calculator">12 * 18</gadget>
<output>216</output>

<gadget id="calculator">12 * 6.5 * 2</gadget>
<output>156</output>

<gadget id="calculator">18 * 6.5 * 2</gadget>
<output>234</output>

<gadget id="calculator">216 + 156 + 234</gadget>
<output>606</output>

<result>606</result>