Train The Trainers SoftUni

using System;

namespace TrainTheTrainers
{
    class Program
    {
        static void Main(string[] args)
        {
            int juryCount = int.Parse(Console.ReadLine());
            double sumGrades = 0;
            double averageGrade = 0;
            double sumAverageGrades = 0;
            double finalAssessment = 0;
            int presentationCounter = 0;
            string presentationName = Console.ReadLine();

            while (presentationName != "Finish")
            {

                presentationCounter++;
                for (int i = 1; i <= juryCount; i++)
                {
                    double grade = double.Parse(Console.ReadLine());
                    sumGrades += grade;
                    averageGrade = sumGrades / juryCount * 1.0;
                }

                Console.WriteLine($"{presentationName} - {averageGrade:f2}.");
                sumAverageGrades += averageGrade;
                sumGrades = 0;
                presentationName = Console.ReadLine();
            }
            finalAssessment = sumAverageGrades / presentationCounter;
            Console.WriteLine($"Student's final assessment is {finalAssessment:f2}.");
        }
    }
}