/*
   *
  * *
 *   *
*     *
 *   *
  * *
   *  

*/

#include <iostream>
using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e5 + 10;

int n; 

int main()
{
	cin >> n;
	
	//首行 
	for(int i = 1; i <= n; i++)
		cout << " ";
	cout << "*" << endl;
	//上半部分
	for(int i = 1; i <= n; i++)
	{
		//空格 
		for(int j = 1; j <= n - i; j++)
			cout << " ";
		cout << "*";
		//中间空格 
		for(int j = 1; j <= 2 * i - 1; j++) 
			cout << " ";
		cout << "*" << endl; 
	} 
	//下半部分 
	for(int i = 1; i <= n - 1; i++)
	{
		//空格
		for(int j = 1; j <= i; j++)
			cout << " ";
		cout << "*";
		//中间空格
		for(int j = 1; j <= 2 * n - 1 - 2 * i; j++)
			cout << " ";
		cout << "*" << endl;
	}
	//最后一行 
	for(int i = 1; i <= n; i++)
		cout << " ";
	cout << "*" << endl;
    return 0;
}