When a number is divided by 50, the quotient is the largest two-digit number and the remainder is the smallest two-digit number. What is this number?
一个数除以50，商是最大的两位数，余数是最小的两位数，这个数是多少．
<gadget id="calculator">50 * 99</gadget>
<output>4_950</output>

<gadget id="calculator">4_950 + 10</gadget>
<output>4_960</output>

<result>4_960</result>