04. Grades

students = int(input())
grade3 = 0
grade4 = 0
grade5 = 0
grade6 = 0
gradeSum = 0

for i in range(students):
    grade = float(input())
    if grade >= 5:
        grade6 += 1
    elif grade >= 4:
        grade5 += 1
    elif grade >= 3:
        grade4 += 1
    elif grade >= 2:
        grade3 += 1

    gradeSum += grade

print(f'Top students: {(grade6 / students * 100):.2f}%')
print(f'Between 4.00 and 4.99: {(grade5 / students * 100):.2f}%')
print(f'Between 3.00 and 3.99: {(grade4 / students * 100):.2f}%')
print(f'Fail: {(grade3 / students * 100):.2f}%')
print(f'Average: {(gradeSum / students):.2f}')