There are 26 questions in a test paper, 8 points are given for each correct answer, and 5 points are deducted for each wrong answer. Although a candidate has answered all the questions, the total score is 0. How many questions does this candidate answer correctly?
一张试卷26个题目，答对一题给8分，答错一题扣5分，有一位考生虽然答完了全部题目，但所得总分为0分，这位考生答对多少题？
<gadget id="calculator">26 * 8</gadget>
<output>208</output>

<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">208 / 13</gadget>
<output>16</output>

<gadget id="calculator">26 - 16</gadget>
<output>10</output>

<result>10</result>