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

}
/**************************************************************
	Problem: 1225
	User: houshanglin
	Language: C++
	Result: Presentation Error
****************************************************************/