Logs

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class _Problem04 {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int count = sc.nextInt();
        sc.nextLine();
        Map<String, Map<Integer, String>> users = new LinkedHashMap<String, Map<Integer, String>>();

        for (int i = 0; i < count; i++) {
            String logs = sc.nextLine();
            String[] logsToArr = logs.split(" ");

            if (users.get(logsToArr[1]) == null) {
                users.put(logsToArr[1], new TreeMap<>());
                users.get(logsToArr[1]).put(Integer.parseInt(logsToArr[2]), logsToArr[0]);
            }else {
                users.get(logsToArr[1]).put(Integer.parseInt(logsToArr[2]), logsToArr[0]);
            }
        }

        for (Map.Entry<String, Map<Integer, String>> user : users.entrySet()) {
            String output = "";
            String bracket = "]";
            output += user.getKey() + ": ";

            for (Map.Entry<Integer, String> log : user.getValue().entrySet()) {
                output += log.getKey() + " [" + log.getValue();
                output += ", ";
            }
            output = output.substring(0, output.length() - 2);
            System.out.println(output + bracket);
        }

    }

}