#include <iostream>

using namespace std;

int main()
{
	int n; cin >> n;

	int i = 0;
	while(i < n)
	{
		int j = 0;
		while(j < n)
		{
			if( i== n - 1 || j == n - 1 || i + j == n-1 || n <= i + j )
			{
				cout << "*";
			}
			else
			{
				cout << " ";
			}
			j++;
		}
		cout << "\n";
		i++;
	}
	return 0;
}