A swimming pool is 50 meters long, 25 meters wide, and 2 meters deep. Now it is necessary to paste tiles on the sides and bottom of the pool. How many square meters of tiles are needed in total?
一个游泳池长50米，宽25米，深2米，现在要在池的四周和底面都贴上瓷砖，共需贴多少平方米的瓷砖？
<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>