There is a container with a cylinder at the bottom and a cone at the top. The height of the cylinder is 12 cm, the height of the cone is 9 cm, and the water depth in the container is 8 cm. When the container is turned upside down, what is the height from the water surface to the tip of the cone?
有一个下面是圆柱、上面是圆锥的容器，圆柱高12厘米，圆锥高9厘米，容器内水深8厘米，将这个容器倒过来放时，此时水面到圆锥尖的高度是多少？
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">5 + 9</gadget>
<output>14</output>

<result>14</result>