A cone has a volume 200 cubic meters less than that of a cylinder with the same base and height. What is the sum of the volumes of the cylinder and the cone?
一个圆锥比与它等底等高的圆柱的体积少200立方米，圆柱与圆锥的体积和是多少立方米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">200 / 2</gadget>
<output>100</output>

<gadget id="calculator">100 * 3</gadget>
<output>300</output>

<gadget id="calculator">300 + 100</gadget>
<output>400</output>

<result>400</result>