A community needs to dig a reservoir with a length of 22m, a width of 10m and a depth of 2.5m. After the reservoir is dug, a layer of cement should be spread on the bottom and surrounding areas. How big is the area to be covered with cement?
一个社区要挖一个长22m、宽10m、深2.5m的蓄水池．蓄水池挖好后，要在底部和四周抹一层水泥，抹水泥的面积有多大？
<gadget id="calculator">22 * 10</gadget>
<output>220</output>

<gadget id="calculator">22 * 2.5 * 2</gadget>
<output>110</output>

<gadget id="calculator">10 * 2.5 * 2</gadget>
<output>50</output>

<gadget id="calculator">220 + 110 + 50</gadget>
<output>380</output>

<result>380</result>