ForceBook

import com.sun.javafx.collections.MappingChange;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Array;
import java.util.*;
import java.util.stream.Collectors;

import static java.util.Comparator.comparingInt;
import static java.util.stream.Collectors.toMap;

public class ForceBook {
    public static void main(String[] args) throws IOException {

        BufferedReader console = new BufferedReader(new InputStreamReader(System.in));

        TreeMap<String, ArrayList<String>> result = new TreeMap<>();

        while (true) {
            String input = console.readLine();

            if (input.equals("Lumpawaroo")) {
                break;
            } else {
                String[] sidesUsers = input.split("([^a-zA-z\\s?]+)");
                String[] separator = input.trim().split("([a-zA-Z\\s?]+)");

                if (Arrays.asList(separator).contains("|")) {
                    String forceSide = sidesUsers[0].trim();
                    String forceUser = sidesUsers[1].trim();

                    if (!result.containsKey(forceSide)) {
                        result.put(forceSide, new ArrayList<String>());
                        result.get(forceSide).add(forceUser);
                    } else if (!result.get(forceSide).contains(forceUser)) {
                        result.get(forceSide).add(forceUser);
                    }
                } else if (Arrays.asList(separator).contains("->")) {
                    String forceSide = sidesUsers[1].trim();
                    String forceUser = sidesUsers[0].trim();

                    if (!result.containsKey(forceSide)) {
                        result.put(forceSide, new ArrayList<String>());
                        result.get(forceSide).add(forceUser);
                    } else if (!result.get(forceSide).contains(forceUser)) {
                        for (ArrayList<String> x :
                                result.values()) {
                            for (String y :
                                    x) {
                                if (y.equals(forceUser)) {
                                    x.remove(y);
                                    break;
                                }
                            }
                        }
                        result.get(forceSide).add(forceUser);
                        System.out.printf("%s joins the %s side!%n", forceUser, forceSide);
                    }
                }
            }
        }

        for (Map.Entry x :
                result.entrySet()) {
            if (result.get(x.getKey()).size() > 0) {
                System.out.print(String.format("Side: %s, ", x.getKey()));
                System.out.print(String.format("Members: %d%n", result.get(x.getKey()).size()));
                for (ArrayList<String> z :
                        result.values()) {
                    for (String y :
                            z) {
                        System.out.printf("! %s%n", y);
                    }
                }
            }
        }
    }
}