The yurt is composed of a cylinder and a cone. The radius of its base is 3 meters, the height of the cylinder is 2 meters, and the height of the cone is 1 meter. What is the size of the space occupied by this yurt?
蒙古包是由一个圆柱和一个圆锥组成．它的底面半径是3米，圆柱的高是2米，圆锥的高是1米，这个蒙古包所占的空间大小是多少．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 1</gadget>
<output>9.42</output>

<gadget id="calculator">56.52 + 9.42</gadget>
<output>65.94</output>

<result>65.94</result>