A swimming pool with a length of 50m, a width of 25m and a depth of 2.5m has been built in the swimming center. Now you want to paste tiles around the swimming pool and on the bottom surface, how many square meters of tiles need to be pasted in total?
游泳中心新建了一个长50m，宽25m、深2.5m的游泳池．现要在游泳池四周和底面都贴上瓷砖，一共需要贴多少平方米的瓷砖？
<gadget id="calculator">50 * 25</gadget>
<output>1_250</output>

<gadget id="calculator">50 * 2.5</gadget>
<output>125</output>

<gadget id="calculator">25 * 2.5</gadget>
<output>62.5</output>

<gadget id="calculator">125 + 62.5</gadget>
<output>187.5</output>

<gadget id="calculator">187.5 * 2</gadget>
<output>375</output>

<gadget id="calculator">1_250 + 375</gadget>
<output>1_625</output>

<result>1_625</result>