#include<stdio.h>
#include<iostream>
#include<math.h>
using namespace std;
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;
	}
}