using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Grades
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            double top = 0;
            double between1 = 0;
            double between2 = 0;
            double fail = 0;
            double average = 0;
            for (int i = 0; i < n; i++)
            {
                var m = int.Parse(Console.ReadLine());
                if (m >= 5)
                {
                     top = (m / n) * 100;
                }
                if (m >= 4 & m <= 4.99)
                {
                    between1 = (m / n) * 100;
                }
                if (m >= 3 & m <= 3.99)
                {
                     between2 = (m / n) * 100;
                }
                if (m < 3)
                {
                    fail = (m / n) * 100;
                }
                 average = m++ / n;
            }
            Console.WriteLine("Top students:", top);
            Console.WriteLine("Between 4.00 and 4.99:", between1);
            Console.WriteLine("Between 3.00 and 3.99:", between2);
            Console.WriteLine("Fail:", fail);
            Console.WriteLine("Average:", average);
            }
        }
    }