A cuboid glass tank with a length of 8dm, a width of 6dm and a height of 2.8dm is filled with water and put into a square iron block with a side length of 4dm. How many liters of water overflows in the tank?
一个长方体的玻璃缸，长为8dm，宽6dm，高2.8dm，装满水后投入一块棱长为4dm的正方形铁块，缸里的水溢出多少升？
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>