A swimming pool is 100 meters long, 50 meters wide, and 2 meters high. To put cement around the swimming pool and the ground, at least how many square meters of cement do you need?
一个游泳池长100米，宽50米，高2米．给游泳池四周和地面抹上水泥，至少需要抹多少平方米水泥？
<gadget id="calculator">100 * 500</gadget>
<output>50_000</output>

<gadget id="calculator">100 * 2 * 2</gadget>
<output>400</output>

<gadget id="calculator">50 * 2 * 2</gadget>
<output>200</output>

<gadget id="calculator">50_000 + 400 + 200</gadget>
<output>50_600</output>

<result>50_600</result>