import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.Comparator;
import java.util.PriorityQueue;

public class Main {
    /**
     * Iterate through each line of input.
     */
    public static void main(String[] args) throws IOException {
        InputStreamReader reader = new InputStreamReader(System.in, StandardCharsets.UTF_8);
        BufferedReader in = new BufferedReader(reader);

        int n = Integer.parseInt(in.readLine().trim());

        PriorityQueue<String> pq = new PriorityQueue<>(n, new Comparator<String>() {
            @Override
            public int compare(String o1, String o2) {
                if (o1.length() == o2.length()) {
                    return 0;
                }

                return (o1.length() < o2.length()) ? 1 : -1;
            }
        });

        String line;
        while ((line = in.readLine()) != null) {
            if (!line.isEmpty()) {
                pq.add(line.trim());
            }
        }

        for (int i=0; i<n; i++) {
            System.out.println(pq.poll());
        }
    }
}