A cylindrical container with a bottom radius of 3dm and a height of 7dm is filled with water. A conical iron block with a bottom radius of 3cm and a height of 3cm is completely submerged in the cylindrical container. How many milliliters of water overflow?
在一个底面半径为3dm、高7dm的圆柱形容器里盛满水，把一个底面半径为3cm、高3cm的圆锥形铁块完全浸没在这个圆柱形容器里，水溢出多少毫升？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 3</gadget>
<output>28.26</output>

<result>28.26</result>