Connect the nine numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9 with arithmetic symbols to form a formula, so that the result is 100.
把1，2，3，4，5，6，7，8，9这九个数字用运算符号连成算式，使其结果为100．
<gadget id="calculator">8 * 9</gadget>
<output>72</output>

<gadget id="calculator">1 + 2 + 3 + 4 + 5 + 6 + 7 + 72</gadget>
<output>100</output>

<result>100</result>