ListOfProducts

import java.util.*;

public class ListOfProducts {
    public static void main(String[] args) {

        Scanner scanner=new Scanner(System.in);

        int n=Integer.parseInt(scanner.nextLine());

        List<String> products=new ArrayList<>();


        for(int i=0; i<n; i++){
            String item=scanner.nextLine();
            products.add(item);
        }
        Collections.sort(products);

        for(int i=0; i<products.size(); i++){
            System.out.printf("%d.%s%n",i+1, products.get(i));
        }
    }
}