rectangular swimming pool is 50 meters long, 25 meters wide, and 2 meters deep. The sides and bottom of the swimming pool are pasted with tiles. How many square meters is the total area of the tiles?
一个长方形游泳池长50米，宽25米，深2米，用瓷片贴游泳池的四周和底．贴瓷片的面积一共有多少平方米？
<gadget id="calculator">50 * 25</gadget>
<output>1_250</output>

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

<gadget id="calculator">25 * 2 * 2</gadget>
<output>100</output>

<gadget id="calculator">1_250 + 200 + 100</gadget>
<output>1_550</output>

<result>1_550</result>