import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;



public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

        int N = Integer.parseInt(bufferedReader.readLine().trim());
				
        HashMap<String, String> emails = new HashMap<>();

        IntStream.range(0, N).forEach(NItr -> {
            try {
                String[] firstMultipleInput = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");

                String firstName = firstMultipleInput[0];

                String emailID = firstMultipleInput[1];
                
                emails.put(emailID, firstName);

            } catch (IOException ex) {
                throw new RuntimeException(ex);
            }
        });

        //Stream emails, filter those that contains @gmail.com, collect to  list, sort list, print list.
        List<String> sortedNames = emails.entrySet().stream().filter(entry -> entry.getKey().contains("@gmail.com"))
            .map(entry -> entry.getValue()).sorted().collect(Collectors.toList());
        
        sortedNames.forEach(System.out::println);
    }
}