A test consists of 10 questions and answers. The scoring standard for each question is: 5 points for correct answers, 3 points for no answers, and 0 points for incorrect answers. At least how many people take this test to ensure that at least 3 people have the same score.
一次测验共有10道问答题，每题的评分标准是：回答正确得5分，不答得3分，回答错误得0分．至少有多少人参加这次测验，才能保证至少有3人的得分相同．
<gadget id="calculator">45 * 2</gadget>
<output>90</output>

<gadget id="calculator">90 + 1</gadget>
<output>91</output>

<result>91</result>