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