import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int[] arr = new int[n];
for(int i = 1;i<n+1;i++){
String s = sc.next();
int number = Integer.parseInt(s.substring(s.length()-6,s.length()));
int j = i-1;
for(;j>0&&arr[j-1]>number;j--){
arr[j]= arr[j-1];
}
arr[j] = number;
}
for(int i:arr){
System.out.println(i);
}
}
}

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