import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Back_2444 {
    public static void main(String[] args) throws IOException {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int n = Integer.parseInt(br.readLine());

        for (int i = 1; i <= n; i++) {
            for (int j = 0; j < n - i; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < i * 2 - 1; j++) {
                System.out.print("*");
            }
            System.out.println();
        }

        for (int i = n - 1; i >= 0; i--) {
            for (int j = 0; j < n - i; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < i * 2 - 1; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
        br.close();
    }
}