One factor is 1 more than the smallest two-digit number, and the other factor is the largest two-digit number. What is the product of it?
一个因数比最小的两位数多1，另一个因数是最大的两位数，它的积是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 99</gadget>
<output>1_089</output>

<result>1_089</result>