A cuboid tank with a length of 8dm, a width of 6dm and a height of 4dm has a water depth of 2.8dm. If a cube iron block with a side length of 4dm is put in, how many liters of water will overflow in the tank?
一个长8dm，宽6dm，高4dm的长方体缸中水深2.8dm，如果投入一块棱长为4dm的正方体铁块，缸里的水溢出多少升？
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">8 * 6 * 2.8</gadget>
<output>134.4</output>

<gadget id="calculator">8 * 6 * 4</gadget>
<output>192</output>

<gadget id="calculator">134.4 - 192</gadget>
<output>-57.6</output>

<gadget id="calculator">64 + (-57.6)</gadget>
<output>6.4</output>

<result>6.4</result>