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

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