StudentsAverageGrade_ToAddMethods

int n = int.Parse(Console.ReadLine());
            Student[] allStudents = new Student[n];

            for (int i = 1; i <= n; i++)
            {
                string input = Console.ReadLine();

                string[] arr = input
                    .Split(' ', StringSplitOptions.RemoveEmptyEntries);

                string name = arr[0];

                Student student = new Student(name);

                for (int j = 1; j < arr.Length; j++)
                {
                    double current = double.Parse(arr[j]);
                    Grade grage = new Grade(current);
                    student.Grades.Add(grage);
                }

                allStudents[i - 1] = student;
            }

            foreach(var stud in allStudents.OrderBy(s => s.Name).ThenByDescending(s => s.GardesAverage))
            {
                if(stud.GardesAverage >= 5.00)
                {
                    Console.WriteLine($"{stud.Name} -> {stud.GardesAverage:f2}");
                }
            }