A number is added by 8, multiplied by 8, subtracted by 8, and finally divided by 8, the result is still 8. What is this number?
一个数加8，乘8，减8，最后除以8，结果还是8．这个数是多少．
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">64 + 8</gadget>
<output>72</output>

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

<gadget id="calculator">9 - 8</gadget>
<output>1</output>

<result>1</result>