import java.util.Scanner;

public class kingOfThieves260415m {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = Integer.parseInt(scan.nextLine());
        String symbol = scan.nextLine();

        int tire = n / 2;
        int count = 1;

        for (int i = 0; i < n; i++){
            System.out.println(doMagic("-", tire) + doMagic(symbol, count) + doMagic("-", tire));
            if (i < n / 2){
                tire--;
                count += 2;
            }else{
                tire++;
                count -= 2;
            }
        }
    }
    static String doMagic(String strToRepeat, int count) {
        String text = "";

        for (int i = 0; i < count; i++) {
            text = text + strToRepeat;
        }

        return text;
    }
}