package AssociativeArrays;

import java.util.*;

public class ForceBook {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        TreeMap<String, List<String>> sideUsers = new TreeMap<>();
        while (!input.equalsIgnoreCase("Lumpawaroo")) {
            if (input.contains("|")) {
                String[] tokens = input.split("\\|");
                tokens[0] = tokens[0].trim();
                tokens[1] = tokens[1].trim();
                boolean isContaining = false;
                for (Map.Entry<String, List<String>> stringListEntry : sideUsers.entrySet()) {
                    if (stringListEntry.getValue().contains(tokens[1])) {
                        isContaining = true;
                        break;
                    }
                }
                if (!sideUsers.containsKey(tokens[0]) && !isContaining) {
                    sideUsers.put(tokens[0], new ArrayList<>());
                    sideUsers.get(tokens[0]).add(tokens[1]);
                } else {
                    if (sideUsers.containsKey(tokens[0])
                            && !isContaining
                            && !sideUsers.get(tokens[0]).contains(tokens[1])) {
                        sideUsers.get(tokens[0]).add(tokens[1]);
                    }
                }
            } else {
                String[] tokens = input.split("->");
                tokens[0] = tokens[0].trim();
                tokens[1] = tokens[1].trim();
                for (Map.Entry<String, List<String>> stringListEntry : sideUsers.entrySet()) {
                    if (stringListEntry.getValue().contains(tokens[0])) {
                        stringListEntry.getValue().remove(tokens[0]);
                        break;
                    }
                }
                if (!sideUsers.containsKey(tokens[1])) {
                    sideUsers.put(tokens[1], new ArrayList<>());
                    sideUsers.get(tokens[1]).add(tokens[0]);
                } else {
                    if (sideUsers.containsKey(tokens[1]) &&
                            !sideUsers.get(tokens[1]).contains(tokens[0])) {
                                 sideUsers.get(tokens[1]).add(tokens[0]);
                    }
                }
                System.out.printf("%s joins the %s side!%n", tokens[0], tokens[1]);
            }
            input = scanner.nextLine();
        }
        sideUsers.entrySet()
                .stream()
                .filter(a -> a.getValue().size() > 0)
                .sorted(Map.Entry.<String, List<String>>comparingByValue(Comparator.comparing(List::size)).reversed())
                .forEach(s -> {
                    System.out.printf("Side: %s, Members: %d%n", s.getKey(), s.getValue().size());
                    s.getValue()
                            .stream()
                            .sorted(String::compareTo)
                            .forEach(e -> System.out.printf("! %s%n", e));
                });
    }
}