using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApp5

{

    class Program

    {

        static void Main(string[] args)

        {

            var n = int.Parse(Console.ReadLine());

​

            var bad = 0.0;

            var middle = 0.0;

            var good = 0.0;

            var verygood = 0.0;

            var excellent = 0.0;

​

​

            for (int i = 0; i < n; i++)

            {

                var points = double.Parse(Console.ReadLine());

​

                if (points <= 22.5)

                {

                    bad += 1.0;

                }

                if (points > 22.5 && points <= 40.5)

                {

                    middle += 1.0;

                }

                if (points > 40.5 && points <= 58.5)

                {

                    good += 1.0;

                }

                if (points > 58.5 && points <= 76.5)

                {

                    verygood += 1.0;

                }

                if (points > 76.5 && points <= 100)

                {

                    excellent += 1.0;

                }

            }

            Console.WriteLine("{0:f2}% poor marks",(bad/n)*100 );

            Console.WriteLine("{0:f2}% satisfactory marks", (middle/n)*100);

            Console.WriteLine("{0:f2}% good marks", (good / n) * 100);

            Console.WriteLine("{0:f2}% very good marks", (verygood / n) * 100);

            Console.WriteLine("{0:f2}% excellent marks",(excellent / n) * 100 );

​

        }

    }

}

​