package demo;

import java.util.*;
import java.util.stream.Collectors;
import java.util.Scanner;

public class Demo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());
        Map<String, String> plantInfo = new LinkedHashMap<>();
        Map<String, List<Double>> plantRatings = new LinkedHashMap<>();

        for (int i = 0; i < n; i++) {
            String[] plantData = scanner.nextLine().split("<->");
            String plantName = plantData[0];
            String rarity = plantData[1];
            plantInfo.put(plantName, rarity);
        }

        String commandInput = scanner.nextLine();

        while (!commandInput.equals("Exhibition")) {
            String[] commandData = commandInput.split(": ");
            String command = commandData[0];
            String[] commandInfo = commandData[1].split(" - ");
            String plant = commandInfo[0];

            if (command.equals("Rate")) {
                double rating = Double.parseDouble(commandInfo[1]);

                if (plantInfo.containsKey(plant)) {
                    if (plantRatings.containsKey(plant)) {
                        plantRatings.get(plant).add(rating);
                    } else {
                        plantRatings.put(plant, new ArrayList<>());
                        plantRatings.get(plant).add(rating);
                    }
                } else {
                    System.out.println("error");
                }
            } else if (command.equals("Update")) {
                String newRarity = commandInfo[1];
                if (plantInfo.containsKey(plant)) {
                    plantInfo.put(plant, newRarity);
                } else {
                    System.out.println("error");
                }
            } else if (command.equals("Reset")) {
                if (plantInfo.containsKey(plant)) {
                    plantRatings.get(plant).clear();
                } else {
                    System.out.println("error");
                }
            }


            commandInput = scanner.nextLine();
        }
        System.out.println("Plants for the exhibition:");
        //- {plant_name1}; Rarity: {rarity}; Rating: {average_rating}
        //- {plant_name2}; Rarity: {rarity}; Rating: {average_rating}
        //…
        //- {plant_nameN}; Rarity: {rarity}; Rating: {average_rating}"
        plantInfo.entrySet().forEach(entry -> System.out.println(String.format("- %s; Rarity: %s; Rating: %.2f",
                entry.getKey(), entry.getValue(),
                plantRatings.get(entry.getKey()) == null || plantRatings.get(entry.getKey()).size() <= 0 ? 0.0 : plantRatings.get(entry.getKey())
                        .stream()
                        .mapToDouble(Double::doubleValue)
                        .average().getAsDouble())));

        System.out.println("");

    }
}