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