The stadium has built a swimming pool with a length of 12 meters, a width of 8 meters and a depth of 4 meters. It is planned to pave the four walls and the bottom with square bricks with a side length of 2 decimeters. How many such square bricks should be purchased?
体育场修了一个长12米，宽8米，深4米的游泳池，计划在四壁和底面都铺上边长为2分米的方砖，算一算要购买这样的方砖多少块？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">96 + 48 + 32</gadget>
<output>176</output>

<gadget id="calculator">176 * 2</gadget>
<output>352</output>

<gadget id="calculator">352 - 96</gadget>
<output>256</output>

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">2 * (1/50)</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">256 / (1/25)</gadget>
<output>6_400</output>

<result>6_400</result>