Liu Jia participated in the mathematics competition with 4 classmates. It is known that the grades of the four students are 78, 79, 82, and 91 respectively. Liu Jia's score was 6 points higher than the average score of the 5 students. Where does Liu Jia rank among these 5 people?
刘佳与4名同学一起参加数学竞赛．已知4名同学的成绩分别是78、79、82、91．刘佳的成绩比5人的平均分高6分．刘佳成绩排在这5个人中的第几名？
<result>5</result>