#include <bits/stdc++.h>
using namespace std;
int main()
{
	int j,i,n;
	cin>>n;
	for(i=1;i<=n*2-1;i++) 
	{	    
		for(j=1;j<=n-i+1;j++) cout<<" ";
		for(j=1;j<=2*i-1;j++) cout<<"*";
		cout<<endl;
	}
	for(i=2;i<=n+1;i++) 
	{
		for(j=1;j<=i-1;j++) cout<<" ";
		for(j=1;j<=(n+1-i)*2+1;j++) cout<<"*";
		cout<<endl;
	}
	
	
	
	
	
	
	
	return 0;
}

/**************************************************************
	Problem: 1071
	User: 21A
	Language: C++
	Result: Wrong Answer
****************************************************************/