#include <iostream>
using namespace std;

int main() {
	int n;
	cin>>n;
	for (int i=0; i<(n/2)+1; i++){
		for (int k=(n/2)-i; k>0; k--){
			cout<<"  ";
		}
		for (int j=0; j<=i; j++){
			cout<<'*'<<" ";
		}
		for (int x=0; x<i; x++){
			cout<<'*'<<" ";
		}
		cout<<endl;
	}
	for (int i=0; i<(n/2); i++){
		for (int k=0; k<=i; k++){
			cout<<"  ";
		}
		for (int j=(n/2)-i; j>0; j--){
			cout<<'*'<<" ";
		}
		for (int j=(n/2)-i; j>1; j--){
			cout<<'*'<<" ";
		}
		cout<<endl;
	}
	return 0;
}