Dig a cuboid pool with a length of 40 meters, a width of 20 meters and a depth of 3 meters. If cement is plastered on its four walls and bottom, how many square meters is the area to be plastered with cement?
挖一个长方体的水池，长40米，宽20米，深3米，如果在它的四壁和底面抹上水泥，抹水泥的面积是多少平方米？
<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<gadget id="calculator">40 * 3</gadget>
<output>120</output>

<gadget id="calculator">60 + 120</gadget>
<output>180</output>

<gadget id="calculator">180 * 2</gadget>
<output>360</output>

<gadget id="calculator">40 * 20</gadget>
<output>800</output>

<gadget id="calculator">360 + 800</gadget>
<output>1_160</output>

<result>1_160</result>