Choose 6 numbers from 1-9 and fill in the formula: ™/š*(š+›)*(œ- ) to maximize the result. So what is the result.
从1-9中选出6个数填在算式：/*(+)*(-)，使结果最大．那么这个结果是多少．
<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<gadget id="calculator">7 + 6</gadget>
<output>13</output>

<gadget id="calculator">9 - 2</gadget>
<output>7</output>

<gadget id="calculator">8 * 13 * 7</gadget>
<output>728</output>

<result>728</result>