stone is placed in a rectangular parallelepiped glass tank with a length of 30 cm and a width of 5 cm. The water level rises by 7 cm. What is the volume of the stone in cubic centimeters?
将一块石头放入一个长30cm，宽5cm的长方体玻璃缸中，水面上升了7cm，这块石头的体积是多少立方厘米？
<gadget id="calculator">30 * 5 * 7</gadget>
<output>1_050</output>

<result>1_050</result>