Add 6 to a certain number, multiply by 6, subtract 6, and divide by 6. The result is still 6. Find this number.
某个数加上6，乘6，减6，除以6，其结果还是6，求这个数．
<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">36 + 6</gadget>
<output>42</output>

<gadget id="calculator">42 / 6</gadget>
<output>7</output>

<gadget id="calculator">7 - 6</gadget>
<output>1</output>

<result>1</result>