import java.util.Scanner;

public class Triangle {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();

		int level = 0;
		if(n % 2 == 0) {
			level = n / 2;
			int count = 2;
			for(int i=0; i<level; i++) {
				for(int j=0; j<count; j++) {
					System.out.print("*");
				}
				System.out.println();
				count += 2;
			}
		}
		else {
			level = n / 2 + 1;
			int count = 1;
			for(int i=0; i<level; i++) {
				for(int j=0; j<count; j++) {
					System.out.print("*");
				}
				System.out.println();
				count += 2;
			}
		}
		sc.close();
	}
}