Put a potato into a cube container with a side length of 20 cm. The water in the container rises by 0.5 decimeters. What is the volume of the potato?
把一个土豆放进一个棱长是20厘米的正方体容器里，容器里的水上升了0.5分米，这个土豆的体积是多少？
<gadget id="calculator">0.5 * 10</gadget>
<output>5</output>

<gadget id="calculator">20 * 20 * 5</gadget>
<output>2_000</output>

<result>2_000</result>