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


return 0;

}

/**************************************************************
	Problem: 1011
	User: mc002
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/