Average Grades

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _04.Average_Grades
{

    class Program
    {
        static void Main(string[] args)
        {
            var students = new List<Student>();
            var studentsCount = int.Parse(Console.ReadLine());

            for (int i=0;i<studentsCount;i++)
            {
                var infoStudent = Console.ReadLine().Split();

                var name = infoStudent.First();
                var grades = infoStudent[1].Split(' ')
                    .Select(double.Parse).ToArray();

                var student = new Student()
                {
                    Name = name,
                    Grades = grades
                };
                students.Add(student);
            }
            students = students
                .Where(a=> a.AverageGrade>=5.00)
                .OrderBy(a=>a.Name)
                .ThenByDescending(a=>a.AverageGrade)
                .ToList();
            foreach(var student in students)
            {
                Console.WriteLine("{0} -> {1:F2}",
                    student.Name, student.AverageGrade);
            }
        }
    }
    class Student
    {
        public  string Name {get; set;}
        public   double[] Grades {get; set;}
        public  double AverageGrade=>this.Grades.Average();
    }
}