When Xiao Ming calculated 86-□*2, he made a mistake in the calculation sequence, and the result was 100, so what should be □.
小明在计算86-□*2时，弄错了计算顺序，结果得100，那么□应该是多少．
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">86 - 50</gadget>
<output>36</output>

<gadget id="calculator">36 * 2</gadget>
<output>72</output>

<gadget id="calculator">86 - 72</gadget>
<output>14</output>

<result>14</result>