Fill in 1, 2, 3, 4, 5, 6, 7, 8 on "□" to make the number of "□□□□-□□*□□" the largest, then what is the number.
把1、2、3、4、5、6、7、8填入"□"上，使得"□□□□-□□*□□"的得数最大，那么这个得数是多少．
<gadget id="calculator">13 * 24</gadget>
<output>312</output>

<gadget id="calculator">8_765 - 312</gadget>
<output>8_453</output>

<result>8_453</result>