#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;
	n/=2;
	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;
	}
}