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);
}
}
}
} 


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