#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,m;
	cin>>n;
	m=n;
	n=n/2+1;
	for(i=1;i<=n;i++){
		for(j=1;j<=i-1;j++){
			cout<<" ";
		}
		for(j=1;j<=m;j++){
			cout<<"*";
		}
		cout<<endl;
	}
	for(i=n-1;i>=1;i--){
		for(j=1;j<=i-1;j++){
			cout<<" ";
		}
		for(j=1;j<=m;j++){
			cout<<"*";
		}
		cout<<endl;
	}
	return 0;
}
/**************************************************************
	Problem: 1219
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/