A cylindrical pool has a bottom diameter of 40m and a depth of 3m. Now it is necessary to lay bricks on the bottom and its surroundings. What is the area of square bricks?
一个圆柱形水池，底面直径为40m，深3m，现要在其底部和四周铺上方砖，铺方砖的面积是多少？
<gadget id="calculator">3.14 * 40 * 3</gadget>
<output>376.8</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 ** 2</gadget>
<output>400</output>

<gadget id="calculator">3.14 * 400</gadget>
<output>1_256</output>

<gadget id="calculator">376.8 + 1_256</gadget>
<output>1_632.8</output>

<result>1_632.8</result>