If the height of a cuboid is shortened by 2 cm, and the volume of the cube is reduced by 50 cm3, what is the volume of the original cuboid?
把一个长方体的高缩短2厘米，变成正方体后体积减少50立方厘米，原来长方体的体积是多少立方厘米．
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">5 * 5 * 7</gadget>
<output>175</output>

<result>175</result>