A cylinder and a cone with the same base and height. The volume of the cone is 126 cubic centimeters. What is the sum of the volumes of these two shapes?
等底等高的圆柱体和圆锥体，其中圆锥体的体积是126立方厘米，这两个形体的体积之和是多少．
<gadget id="calculator">126 * 3</gadget>
<output>378</output>

<gadget id="calculator">126 + 378</gadget>
<output>504</output>

<result>504</result>