In a certain mathematics competition, 10 first prizes and 20 second prizes were originally scheduled, but now the last 4 of the first prizes are adjusted to second prizes. In this way, the average score of the second prize students has increased by 2 points, and one The average score of the students who won the first prize increased by 4 points, so how much more is the average score of the first prize than the average score of the second prize?
某次数学竞赛原定一等奖10人，二等奖20人，现在将一等奖中最后4个调整为二等奖，这样得二等奖的学生的平均分提高了2分，得一等奖的学生的平均分提高了4分，那么原来一等奖平均分比二等奖平均分多多少分？
<gadget id="calculator">10 - 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">20 + 4</gadget>
<output>24</output>

<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<gadget id="calculator">24 + 48</gadget>
<output>72</output>

<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<result>18</result>