The divisor is 19, the quotient is 23, the remainder is 13, what is the dividend.
除数是19，商是23，余数是13，被除数是多少．
<gadget id="calculator">19 * 23</gadget>
<output>437</output>

<gadget id="calculator">437 + 13</gadget>
<output>450</output>

<result>450</result>