In the formula □/□=8…8, what is the minimum value of the dividend.
算式□/□=8…8中，被除数最小等于多少．
<gadget id="calculator">8 + 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 8</gadget>
<output>72</output>

<gadget id="calculator">72 + 8</gadget>
<output>80</output>

<result>80</result>