04. Grades

# 04. Grades

students = int(input())
sum_evaluation = 0
sum_evaluation_2 = 0
sum_evaluation_3 = 0
sum_evaluation_4 = 0
sum_evaluation_5 = 0
students_2 = 0
students_3 = 0
students_4 = 0
students_5 = 0
for i in range(students):
    evaluation = float(input())
    if evaluation >= 5:
        sum_evaluation_5 += evaluation
        students_5 += 1
    elif evaluation >= 4 and evaluation <= 4.99:
        sum_evaluation_4 += evaluation
        students_4 += 1
    elif evaluation >= 3 and evaluation <= 3.99:
        sum_evaluation_3 += evaluation
        students_3 += 1
    elif evaluation < 3:
        sum_evaluation_2 += evaluation
        students_2 += 1

sum_evaluation = sum_evaluation_2 + sum_evaluation_3 + sum_evaluation_4 + sum_evaluation_5
evaluation_2 = students_2 / students
evaluation_3 = students_3 / students
evaluation_4 = students_4 / students
evaluation_5 = students_5 / students
end_evaluation = (sum_evaluation / students)

print(f"Top students: {evaluation_5 * 100:.2f}%")
print(f"Between 4.00 and 4.99: {evaluation_4 * 100:.2f}%")
print(f"Between 3.00 and 3.99: {evaluation_3 * 100:.2f}%")
print(f"Fail: {evaluation_2 * 100:.2f}%")
print(f"Average: {end_evaluation:.2f}")