07. Graduation pt.2

using System;

namespace Graduation_pt._2
{
    class Program
    {
        static void Main(string[] args)
        {

            string Name = Console.ReadLine();
            double CountGrade = 1;
            double TotalGrade = 0;
            int Mistake = 0;

            while (CountGrade <= 12&&Mistake <= 1)
            {
                double Grade = double.Parse(Console.ReadLine());
                if (Grade >= 4.00&& Grade <= 6.00)
                {
                    TotalGrade += Grade;
                    ++CountGrade;

                }
                else
                {
                    Mistake++;

                }
            }


            if(CountGrade >= 12)
            {
                TotalGrade = TotalGrade / 12;
                Console.WriteLine($"{Name} graduated. Average grade: {TotalGrade:f2}");
            }
            else if (CountGrade < 12)
            {
                TotalGrade = TotalGrade / CountGrade;
                Console.WriteLine($"{Name} has been excluded at {CountGrade} grade");
            }



        }
    }
}