#include <iostream>
using namespace std;

int main(){
	int i,j,n;
	cin>>n;
	n = n + 1;
	for(i = 1;i <= n - 1;i++){
		for(j = 1;j <= n - i;j++){
			cout<<" ";
		}
		
		for(j = 1;j <= 2 * i - 1;j++){
			cout<<"*";
		} 
		cout<<endl;
	}
	
	for(i = n;i >= 1;i--){
		for(j = 1;j <= n - i;j++){
			cout<<" ";
		}
		
		for(j = 1;j <= 2 * i - 1;j++){
			cout<<"*";
		} 
		cout<<endl;
	}
	return 0;
}
/**************************************************************
	Problem: 1071
	User: admin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/