There is a haystack, the upper part is a cone, the lower part is a cylinder, the height of the cone is 1.5m, the radius of the bottom surface is 2m, the height of the cylinder is 3m, the radius of the bottom surface is 2m, what is the volume of this haystack in m**3.
有一个草堆，上部是一个圆锥，下部是一个圆柱，圆锥高1.5m，底面半径2m，圆柱高3m，底面半径2m，这个草堆的体积是多少m**3．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 1.5</gadget>
<output>6.28</output>

<gadget id="calculator">3.14 * 4 * 3</gadget>
<output>37.68</output>

<gadget id="calculator">6.28 + 37.68</gadget>
<output>43.96</output>

<result>43.96</result>