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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() addition = 0 for i in student_marks[query_name]: addition = addition + i average_Score = addition/3 print ('{:.2f}'.format(average_Score))

    Try this