Xiao Hua, Xiao Min, and Xiao Ming competed in a quick-answer contest with a total of 50 puzzles. Xiao Hua has answered 11 questions correctly, Xiao Min has answered 15 questions correctly, and Xiao Ming has answered 17 questions correctly. And there are no giving up and wrong answers. As long as Xiao Ming answers as many questions as possible, he can securely win the first place.
小华、小敏、小明三人进行共50道智力题的抢答竞赛．小华已答对11题，小敏已答对15题，小明已答对17题．而且没有放弃和答错的题目．小明只要再抢答对多少道题就能稳获得第一名．
<gadget id="calculator">50 - 11 - 15 - 17 - 1</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>