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

namespace ConsoleApp4
{
    class Program
    {
        class Student
        {
           public string Name { get; set; }
           public List<double> grades { get; set; }
           public double averageGrade { get; set; }
        }

        static void Main(string[] args)
        {
            var count = int.Parse(Console.ReadLine());

            var excellentStudents = new List<Student>();
            for (int i = 0; i < count; i++)
            {
                string[] input = Console.ReadLine().Split().ToArray();

                Student std = new Student();
                std.Name = input[0];

                for (int j = 1; j < input.Length; j++)
                {
                    std.grades.Add(Convert.ToDouble(input[j]));
                }

                std.averageGrade = std.grades.Average();

                if (std.averageGrade >= 5.00)
                {
                    excellentStudents.Add(std);
                }
            }

            excellentStudents = excellentStudents.OrderBy(x => x.Name).ThenByDescending(x => x.averageGrade).ToList();

            foreach(Student ex in excellentStudents)
            {
                Console.WriteLine($"{ex.Name} -> {ex.averageGrade}");
            }


        }
    }
}