To build a brick wall with a length of 30 meters, a thickness of 32 centimeters and a height of 3.5 meters between the two floors, 540 bricks are needed per cubic meter. How many bricks are needed in total?
在两楼间砌一堵长30米，厚32厘米，高3.5米的砖墙，每立方米要砖540块，一共需要多少块砖？
<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">30 * (8/25) * 3.5</gadget>
<output>33.6</output>

<gadget id="calculator">540 * 33.6</gadget>
<output>18_144</output>

<result>18_144</result>