#include <math.h>
#include <stack>
#include <stdio.h>
#include <iostream>
#include <vector>
#include <iomanip>
#include <string.h>
#include <algorithm>
using namespace std;
#define LL long long
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int main()   
{
	int n;
	cin >> n;
	for(int i = 1 ; i <= n + 1 ; i++)
	{
		for(int j = 1 ; j <= n * 2 + 1 ; j++)
		{
			if(n - i + 2 == j || n + i==j)
				cout << "*";
			else
			    cout << " ";
		}
		cout << endl;
	}
	for(int i = n ; i >= 1 ; i--)
	{
		for(int j = 1 ; j <= n * 2 + 1 ; j++)
		{
			if(n - i + 2 == j || n + i == j)
				cout << "*";
			else
				cout << " ";
		}
		cout << endl;
	}
}