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

int n;

int main()
{
	cin >> n;
	for(int i = 1; i <= n; i++)//代表行号 
	{
		for(int j = 1; j <= n - i; j++)
			cout << " ";
		for(int j = 1; j <= 2 * i - 1; j++)
			cout << "*";
			
		for(int j = 1; j <= n - 1; j++)
		{
			for(int k =1 ; k <= 2 * n - 1 - 2 * (i - 1); k++)
				cout << " ";
			for(int j = 1; j <= 2 * i - 1; j++)
				cout << "*";
		}
		cout << endl;
	}

    return 0;
}