The following formulas are arranged according to certain rules: 4+2, 5+7, 6+12, 7+17, ..., so what is the formula whose sum is 102.
下面的算式是按一定的规律排列的：4+2，5+7，6+12，7+17，…，那么和为102的算式是多少．
<gadget id="calculator">102 - 4 - 2</gadget>
<output>96</output>

<gadget id="calculator">1 + 5 + 96</gadget>
<output>102</output>

<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">102 / 6</gadget>
<output>17</output>

<gadget id="calculator">17 - 1</gadget>
<output>16</output>

<gadget id="calculator">16 * 1</gadget>
<output>16</output>

<gadget id="calculator">16 * 5</gadget>
<output>80</output>

<gadget id="calculator">4 + 16 + 2 + 80</gadget>
<output>102</output>

<result>102</result>