#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j;
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=(n+1)-i;j++){
			cout<<" ";
		}
		for(j=1;j<=2*i-1;j++){
			cout<<"*";
		}
		cout<<endl;
	}
	for(i=n+1;i>=1;i--){
		for(j=1;j<=(n+1)-i;j++){
			cout<<" ";
		}
		for(j=1;j<=2*i-1;j++){
			cout<<"*";
		}
		cout<<endl;
	}
	
} 
/**************************************************************
	Problem: 1071
	User: linzihang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/