#include <bits/stdc++.h>
using namespace std;
int main(){
	int n,i=1;
	cin>>n;
	for(int j=1;j<=n;j++){
		for(int y=1;y<=n-j;y++)cout<<" ";
		for(int y=1;y<=i;y++)cout<<'*';
		for(int y=1;y<=n-j;y++)cout<<" ";
		for(int y=1;y<=n-j;y++)cout<<" ";
		for(int y=1;y<=i;y++)cout<<'*';
		for(int y=1;y<=n-j;y++)cout<<" ";
		for(int y=1;y<=n-j;y++)cout<<" ";
		for(int y=1;y<=i;y++)cout<<'*';
		cout<<endl;
		i+=2;
	}	return 0;
}
/**************************************************************
	Problem: 1006
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2072 kb
****************************************************************/