asd

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

namespace _4.Average_Grades
{
    class Student
    {
        public string name { get; set; }

        public List<double> grades { get; set; }

        public double averageGrade => grades.Average();

    }
    class AverageGrades
    {
        static void Main()
        {
            var numberOfStudents = int.Parse(Console.ReadLine());

            var listOfStudents = new List<Student>();

            for (int i = 0; i < numberOfStudents; i++)
            {
                var wholeStudent = Console.ReadLine().Split(' ').ToList();
                var gradesS = wholeStudent.Skip(1).Select(double.Parse).ToList();

                var currentStudent = new Student();

                currentStudent.name = wholeStudent[0];
                currentStudent.grades = gradesS;

                listOfStudents.Add(currentStudent);
            }


            foreach (var student in listOfStudents.OrderByDescending(x => x.averageGrade).OrderBy(x=>x.name))
            {
                if (student.averageGrade >= 5.00)
                {
                    Console.WriteLine($"{student.name} -> {student.averageGrade:f2}");
                }
            }
        }
    }
}