The sum of the minuend, the subtrahend and the difference is 824. If the subtrahend is 398, what is the difference?
被减数、减数、差三个数的和是824，如果减数是398，差是多少．
<gadget id="calculator">824 / 2</gadget>
<output>412</output>

<gadget id="calculator">412 - 398</gadget>
<output>14</output>

<result>14</result>