p1

import java.util.Scanner;

public class B1 {
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        for(int i=1; i<=n;i++){
            for(int j=1;j<=n-i;j++){
                System.out.print(" ");
            }
            for(int j=1;j<=i;j++){
            System.out.print("*");

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

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