A conical warehouse has an outer circumference of 31.4 meters, a wall thickness of 1 meter, and a height of 3 meters. How much sand can this warehouse hold? If each cubic meter of sand weighs about 600 kilograms, how much sand can this warehouse hold at most?
一个圆锥形的仓库，外面周长为31.4米，墙的厚度为1米，高度是3米，这个仓库能装多少沙子？如果每立方米的沙子约重600千克，这个仓库最多能装多重的沙子？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 3 * 600</gadget>
<output>30_144</output>

<result>30_144</result>