sing System;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApp190
{
    public class Program
    {
        static void Main(string[] args)
        {
            List<Students> students = new List<Students>();
            int counter = int.Parse(Console.ReadLine());
            for (int i = 1; i <= counter; i++)
            {
                List<string> text = Console.ReadLine().Split().ToList();
                string firstName = text[0];
                string secondName = text[1];
                double grade = double.Parse(text[2]);
                Students student = new Students();
                {
                    student.FirstName = firstName;
                  student.LastName = secondName;
                    student.Grade = grade;
                };

                students.Add(student);
            }
            var printList= students.OrderByDescending(x => x.Grade);

            foreach (var student in printList)
            {
                Console.WriteLine($"{student.FirstName} {student.LastName}: {(student.Grade):f2}");
            }



        }
    }
    public class Students
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public double Grade { get; set; }


    }
}