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


	return 0;
}

/**************************************************************
	Problem: 1073
	User: hbq
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/