Xiao Ming uses a cylindrical water cup with a bottom diameter of 6 cm and a height of 15 cm to measure the volume of a potato. He first adds water 6 cm high to the cup, and then puts the potato in. The water surface rises to 10 cm. The volume of the potato is How many cubic centimeters is it?
小明利用一个底面直径是6厘米、高15厘米的圆柱形水杯测量一个土豆的体积，他先在水杯中加上6厘米高的水，再放进土豆，水面上升到10厘米处，这个土豆体积是多少立方厘米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 9 * 4</gadget>
<output>113.04</output>

<result>113.04</result>