A cuboid is 20 cm long, 10 cm wide, and 40 cm high. How many square centimeters will the surface area be increased if the wood is cut into three sections along the direction parallel to the base?
一根长方体木料底面长是20厘米，宽是10厘米，高40厘米．如果把这根木料沿着底面平行的方向横截成三段，表面积增加了多少平方厘米？
<gadget id="calculator">20 * 10 * 4</gadget>
<output>800</output>

<result>800</result>