When two numbers are divided, the quotient is 23 and the remainder is 12. The sum of dividend and divisor is 396. Find the dividend?
两个数相除，商为23，余数为12．被除数与除数之和为396．求被除数？
<gadget id="calculator">396 - 12</gadget>
<output>384</output>

<gadget id="calculator">23 + 1</gadget>
<output>24</output>

<gadget id="calculator">384 / 24</gadget>
<output>16</output>

<gadget id="calculator">396 - 16</gadget>
<output>380</output>

<result>380</result>