#include<iostream>
using namespace std;

int main()
{
	int n = 0;
	cin >> n;
	int cnt1 = n - 1,cnt2 = 1;
	
	for(int i = 0;i < n;i++)
	{
		for(int j = 0;j < cnt1;j++)
		{
			cout << " ";
		}
		for(int j = 0;j < cnt2;j++)
		{
			cout << "*";
		}
		cnt1 -= 1;
		cnt2 += 2;
		cout << endl;
	}

	cnt1 = 1,cnt2 = n * 2 - 3;
	for(int i = 0;i < n - 1;i++)
	{
		for(int j = 0;j < cnt1;j++)
		{
			cout << " ";
		}
		for(int j = 0;j < cnt2;j++)
		{
			cout << "*";
		}
		cnt1++;
		cnt2 -= 2;
		cout << endl;
	}
	return 0;
}