Grades

using System;

namespace P02_Grades
{
    class Program
    {
        static void Main(string[] args)
        {
            double grades = double.Parse(Console.ReadLine());

            PrintInWords(grades);
        }

        private static void PrintInWords(double grades)
        {
            if (grades >= 2.0 && grades < 3.0)
            {
                Console.WriteLine("Fail");
            }
            if (grades >= 3.0 && grades < 3.50)
            {
                Console.WriteLine("Poor");
            }
            if (grades >= 3.50 && grades < 4.50)
            {
                Console.WriteLine("Good");
            }
            if (grades >= 4.50 && grades < 5.50)
            {
                Console.WriteLine("Very good");
            }
            if (grades >= 5.50 && grades <= 6.0)
            {
                Console.WriteLine("Exellent");
            }
        }
    }
}