06. Graduation

using System;

namespace Graduation
{
    class Program
    {
        static void Main(string[] args)
        {

            string nameOfStudent = Console.ReadLine();
            double numberOfMark = 1;
            double totalSum = 0.0;

            while (numberOfMark <= 12)
            {
                double mark = double.Parse(Console.ReadLine());
                totalSum += mark;

                numberOfMark++;

            }

            double AverageSum = totalSum / 12;


            if (totalSum >= 4.00)
            {
                Console.WriteLine($"{nameOfStudent} graduated. Average grade: {AverageSum:F2}");
            }



        }
    }
}