#include<bits/stdc++.h>
using namespace std;
int n;
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n+1-i;j++) cout<<" ";
		for(int j=1;j<=2*i-1;j++) cout<<"*";
		cout<<endl;
	}
	for(int i=n+1;i>=1;i--){
		for(int j=1;j<=n+1-i;j++) cout<<" ";
		for(int j=1;j<=2*i-1;j++) cout<<"*";
		cout<<endl;
	}
	return 0;
}

/**************************************************************
	Problem: 1071
	User: dengyuanyan
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/