#include<stdio.h>

#include

#include<math.h>

using namespace std;

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;

}

}