quiz competition, the rule is: 10 points for a correct answer, 6 points for a wrong answer. Contestant No. 1 answered 10 questions in total and scored 36 points in the end. How many questions did he answer correctly?
一次智力竞赛，规则是：答对一题加10分，答错一题扣6分．一号选手共抢答10个题，最后得分36分，他答对了多少道题．
<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">100 - 36</gadget>
<output>64</output>

<gadget id="calculator">10 + 6</gadget>
<output>16</output>

<gadget id="calculator">64 / 16</gadget>
<output>4</output>

<gadget id="calculator">10 - 4</gadget>
<output>6</output>

<result>6</result>