using System;
using System.Collections.Generic;

public class Program
{
	public static void Main()
	{
		int n = int.Parse(Console.ReadLine());

		List<Book> books = new List<Book>();

		for(int i =0; i<n; i++)
		{
			string[] tokens = Console.ReadLine().Split();
			string title = tokens[0];
			string author = tokens[1];
			string publisher = tokens[2];
			DateTime releaseDate = DateTime.ParseExact(tokens[3],"dd.MM.yyyy", System.Globalization.CultureInfo.InvariantCulture);
			string isbn = tokens[4];
			decimal price = decimal.Parse(tokens[5]);

			Book book = new Book(title, author, publisher, releaseDate,isbn,price);
			books.Add(book);

			Dictionary<string, decimal> authors = new Dictionary<string,decimal>();

			foreach (Book item in books)
			{
				string authorName = book.Author;
				decimal bookPrice = book.Price;

				if (authors.ContainsKey(authorName) == false)
				{
					authors.Add(authorName,0);
				}
				authors[authorName] =authors[authorName]+ bookPrice;
			}
		}
		Dictionary<string, decimal> sortedAuthors = authors.OrderByDescending(a=>a.Value).ThenBy(a=>a.Key).ToDictionary(x=> x.Key, x=>x.Value);

		foreach (var author in sortedAuthors)
		{
			Console.WriteLine($"{author.Key} -> {author.Value:f2}");
		}

	}
}
public class Book
{
	public string Title {get;set;}
	public string Author {get;set;}
	public string Publisher {get;set;}
	public DateTime ReleaseDate {get;set;}
	public string Isbn {get;set;}
	public decimal Price {get;set;}

	public Book (string title, string author ,string publisher ,DateTime releaseDate,string isbn ,decimal price)
	{
		Title = title;
		Author = author;
		Publisher = publisher;
		ReleaseDate = releaseDate;
		Isbn = isbn;
		Price = price;
	}
}