import java.util.Scanner;

public class Pyramide {

    public static void main(String[] args) {
        System.out.print("Donnez la taille du motif : ");
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        for(int i = 1; i <= n; i++) {
            for(int j = 0; j < n - i ; j++) {
                System.out.print(" ");
            }
            for(int j = 0; j < 2 * i - 1; j++) {
                System.out.print("*");
            }
            for(int j = 0; j < n - i ; j++) {
                System.out.print(" ");
            }
            System.out.println();
        }   
    }
}