#include<bits/stdc++.h>
using namespace std;
#include<cstdio>
int main(){
	int n,i,j;
	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;   	
	}
}
	

	

/**************************************************************
	Problem: 1071
	User: fandaohan
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/