When two numbers are divided, the quotient is 19, the remainder is 4, the difference between the dividend and the divisor is 652, find the dividend.
两数相除，商为19，余数为4，被除数与除数之差为652，求被除数．
<gadget id="calculator">652 - 4</gadget>
<output>648</output>

<gadget id="calculator">19 - 1</gadget>
<output>18</output>

<gadget id="calculator">648 / 18</gadget>
<output>36</output>

<gadget id="calculator">19 * 36</gadget>
<output>684</output>

<gadget id="calculator">684 + 4</gadget>
<output>688</output>

<result>688</result>