cuboid glass tank measures 8dm in length, 5dm in width, 4dm in height and 3.2dm in water depth. If a cylindrical iron block with a diameter and height of 4dm is thrown in, how many liters of water will overflow in the tank?
一个长方体的玻璃缸，从里面量得长8dm，宽5dm，高4dm，水深3.2dm．如果投入一块直径和高都为4dm的圆柱形铁块，缸里的水溢出多少升？
<gadget id="calculator">8 * 5 * 3.2</gadget>
<output>128</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 4</gadget>
<output>50.24</output>

<gadget id="calculator">8 * 5 * 4</gadget>
<output>160</output>

<gadget id="calculator">50.24 - 160</gadget>
<output>-109.76</output>

<gadget id="calculator">128 + (-109.76)</gadget>
<output>18.24</output>

<result>18.24</result>