Dividing the number A by the number B has a quotient of 9 and the remainder 8 is an integer division. What is the smallest number A?
甲数除以乙数商9余8是一个整数除法，则甲数最小是多少．
<gadget id="calculator">8 + 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 9</gadget>
<output>81</output>

<gadget id="calculator">81 + 8</gadget>
<output>89</output>

<result>89</result>