#include<bits/stdc++.h>
using namespace std;
int main()
{
	int i,n,o=3;
	cin>>n;
	for(i=1;i<=n;i++){
		for(int j=1;j<=((1+(n-1)*2)-o)/2;j++){
			cout<<" ";
		}
		for(int j=1;j<=o;j++){
			cout<<"*";
		}
		for(int j=1;j<=((1+(n-1)*2)-o)/2;j++){
			cout<<" ";
		}
		o+=2;
		cout<<endl;
	}
return 0;

}

/**************************************************************
	Problem: 1069
	User: houshanglin
	Language: C++
	Result: Presentation Error
****************************************************************/