The quotient of a number divided by 28 is 25, and the remainder is the largest. What is this number?
一个数除以28商是25，余数是最大的，这个数是多少．
<gadget id="calculator">25 * 28</gadget>
<output>700</output>

<gadget id="calculator">28 - 1</gadget>
<output>27</output>

<gadget id="calculator">700 + 27</gadget>
<output>727</output>

<result>727</result>