// editor1
import java.util.Scanner;
public class Main 
{
    public static void main(String[] args) 
    {
        Scanner s = new Scanner(System.in);
        int n = Integer.parseInt(s.nextLine());
        String[] names = new String[n];
        for (int i = 0; i < n; i++) {
            names[i] = s.nextLine();
            if (!names[i].matches("[A-Za-z]+"))
            {
                System.out.println("Invalid Input");
                return;
            }
        }
        for (int i = 0; i < n; i++) {
            System.out.print(names[i]);
            if (i < n - 1) System.out.print(" ");
        }
    }
}