In a water cup with a radius of 2 cm at the bottom, there is water 11 cm high. After the iron block is completely submerged, and the water height in the cup is measured to be 18 cm, what is the volume of the iron block in cubic centimeters?
在一个底面半径2厘米的水杯中，盛有11cm高的水，将铁块放入完全浸没后，测量杯中水高18厘米，则铁块体积为多少立方厘米？
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">18 - 11</gadget>
<output>7</output>

<gadget id="calculator">3.14 * 4 * 7</gadget>
<output>87.92</output>

<result>87.92</result>