If a cylinder and a cone have the same base and height, and their total volume is 68 cubic centimeters, what is the volume of the cylinder in cubic centimeters?
如果一个圆柱和一个圆锥等底等高，它们的体积一共是68立方厘米，那么圆柱的体积是多少立方厘米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">68 / 4</gadget>
<output>17</output>

<gadget id="calculator">68 - 17</gadget>
<output>51</output>

<result>51</result>