Pour some water into a glass container with a side length of 8cm and a height of 12cm, and the water depth is 6cm; then put a piece of coral stone, and the water depth is 7cm. Find the volume of coral rock.
把一个底面边长是8cm，高是12cm的玻璃容器中倒入一些水，水深6cm；然后放入一块珊瑚石，这时水深7cm．求珊瑚石的体积．
<gadget id="calculator">7 - 6</gadget>
<output>1</output>

<gadget id="calculator">8 * 8 * 1</gadget>
<output>64</output>

<result>64</result>