The school fills a conical pile of sand with a bottom diameter of 2 meters and a height of 3 meters into a sand pit with a length of 4 meters and a width of 3.14 meters. How thick can it be?
学校把一个底面直径是2米，高是3米的圆锥形沙子堆，填铺到一个长4米，宽3.14米的沙坑里，可以铺多厚？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">4 * (1/3) * 3.14 * 1 * 3</gadget>
<output>12.56</output>

<gadget id="calculator">3 / 12.56</gadget>
<output>0.238854</output>

<gadget id="calculator">(1/3) * 3.14 * 1 * 0.238854</gadget>
<output>0.250001</output>

<result>0.250001</result>