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    if name == 'main': n = int(input()) student_marks = {} for _ in range(n): name, *line = input().split() scores = list(map(float, line)) student_marks[name] = scores query_name = input() if query_name in student_marks: Avg = student_marks.get(query_name) Sum= sum(Avg) vg=((float(Sum)) / float(3)) print("{:.2f}".format(vg))