import java.io.*;
import java.util.*;

public class Main{
    public static void main(String[] args) throws Exception{
        Scanner sc = new Scanner(System.in);
        while(sc.hasNextInt()){
            int n = sc.nextInt();
            sc.nextLine();
            String[] ss = new String[n];
            for(int i = 0; i < n; ++i){
                ss[i] = sc.nextLine();
            }

            Arrays.sort(ss, new Comparator<String>(){
                @Override
                public int compare(String s1, String s2){
                    char[] c1 = s1.toCharArray();
                    char[] c2 = s2.toCharArray();
                    if(c1.length == 0){
                        return -1;
                    }
                    if(c2.length == 0){
                        return 1;
                    }

                    if(c1[0] < c2[0]){
                        return -1;
                    }else if(c1[0] > c2[0]){
                        return 1;
                    }else{
                        int index2 = 1;
                        int index3 = 1;
                        while(index2 <= c1.length - 1 && index3 <= c2.length -1){
                            if(c1[index2] < c2[index3]){
                                return -1;
                            }else if(c1[index2] > c2[index3]){
                                return 1;
                            }else{
                                index2++;
                                index3++;
                            }
                        }
                        if(index2 <= c1.length - 1){
                            return 1;
                        }
                        if(index3 <= c2.length - 1){
                            return -1;
                        }
                        return -1;
                    }
                }
            });
            for(String s : ss){
                System.out.println(s);
            }
        }
    }
}