import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n = Integer.parseInt(input.nextLine());
for (int stars = 1; stars <= n; stars++) {
for (int j = 0; j < n - stars; j++) {
System.out.print(" ");
}
for (int i = 1; i <= stars ; i++) {
System.out.print("* ");
}
System.out.println();
}
for (int stars = n - 1; stars >= 1; stars--) {
for (int j = 0; j < n - stars; j++) {
System.out.print(" ");
}
for (int i = 0; i < stars ; i++) {
System.out.print("* ");
}
System.out.println();
}
}
}
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