A cylindrical grain hoard, measured from the inside, has a bottom circumference of 62.8 meters, a height of 3 meters, and a cubic meter of rice that weighs 545 kilograms. How many tons of rice can this grain hoard hold?
一个圆柱形粮囤，从里面量，底面周长是62.8米，高是3米，每立方米稻谷重545千克，那么这个粮囤大约能装稻谷多少吨？
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3 / 1_000</gadget>
<output>3/1_000 = around 0.003</output>

<gadget id="calculator">545 * 3.14 * 100 * (3/1_000)</gadget>
<output>513.39</output>

<result>513.39</result>