package Object;

import java.text.ParseException;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.TreeMap;

public class BookLibrary {
	public static void main(String[] args) {

		Scanner scanner = new Scanner(System.in);

		int n = Integer.parseInt(scanner.nextLine());
		TreeMap<String, Double> library = new TreeMap<>();

		for (int i = 0; i < n; i++) {
			String[] input = scanner.nextLine().split(" ");

			Book book = new Book(input[0], input[1], input[2],
					LocalDate.parse(input[3], DateTimeFormatter.ofPattern("dd.MM.yyyy")), input[4],
					Double.parseDouble(input[5]));

			if (!library.containsKey(book.getAuthor())) {
				library.put(book.getAuthor(), 0.0);
			}

			double total = library.get(book.getAuthor());
			total += book.getPrice();
			library.put(book.getAuthor(), total);
		}
		library.entrySet().stream().sorted((a, b) -> Double.compare(b.getValue(), a.getValue())).forEach(s -> {
			System.out.printf("%s -> %.2f%n",s.getKey(),s.getValue());
		});
	}

	static class Book {
		private String title;
		private String author;
		private String publisher;
		private LocalDate releaseDate;
		private String isbn;
		private double price;

		public Book(String title, String author, String publisher, LocalDate releaseDate, String isbn, double price) {
			this.title = title;
			this.author = author;
			this.publisher = publisher;
			this.releaseDate = releaseDate;
			this.isbn = isbn;
			this.price = price;

		}

		public String getTitle() {
			return title;
		}

		public void setTitle(String title) {
			this.title = title;
		}

		public String getAuthor() {
			return author;
		}

		public void setAuthor(String author) {
			this.author = author;
		}

		public String getPublisher() {
			return publisher;
		}

		public void setPublisher(String publisher) {
			this.publisher = publisher;
		}

		public LocalDate getReleaseDate() {
			return releaseDate;
		}

		public void setReleaseDate(LocalDate releaseDate) {
			this.releaseDate = releaseDate;
		}

		public String getIsbn() {
			return isbn;
		}

		public void setIsbn(String isbn) {
			this.isbn = isbn;
		}

		public double getPrice() {
			return price;
		}

		public void setPrice(double price) {
			this.price = price;
		}

	}
}