using System;
using System.Collections.Generic;
using System.Linq;
class Program
{
    static void Main()
    {
        int number = int.Parse(Console.ReadLine());
        SortedDictionary<string, double> authorSales = new SortedDictionary<string, double>();
        for (int i = 0; i < number; i++)
        {
            string[] input = Console.ReadLine().Split(' ');
            string author = input[1];
            double price = Convert.ToDouble(input[5]);
            if (authorSales.Keys.Contains(author))
            {
                authorSales[author] += price;
            }
            else
            {
                authorSales.Add(author, price);
            }
        }
        IOrderedEnumerable<KeyValuePair<string, double>> sortedDict = authorSales.OrderByDescending(x => x.Value).ThenBy(x => x.Key);
        foreach (KeyValuePair<string, double> kvp in sortedDict)
        {
            Console.WriteLine("{0} -> {1:F2}", kvp.Key, kvp.Value);
        }
    }
}