05. Train The Trainers

using System;

namespace TrainTheTrainers
{
    class Program
    {
        static void Main(string[] args)
        {
            //моят начин в домашното е с по-разбираеми имена на променливи
            int n = int.Parse(Console.ReadLine()); // number of judges
            string input = Console.ReadLine();

            double totalSum = 0;
            int numberOfContestants = 0;

            while (input != "Finish")
            {
                double sum = 0;

                for (int i = 1; i <= n; i++)
                {
                    double grade = double.Parse(Console.ReadLine());
                    sum += grade;
                }
                double averageGrade = sum / n;
                Console.WriteLine($"{input} - {averageGrade:F2}.");

                totalSum += averageGrade;
                numberOfContestants++;

                input = Console.ReadLine();
            }

            double totalAverageGrade = totalSum / numberOfContestants;
            Console.WriteLine($"Student's final assessment is {totalAverageGrade:F2}.");
        }
    }
}