#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,j,n;
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=n-i+1;j++){
			cout<<" ";}
	    for(j=1;j<=i*2-1;j++){
		cout<<"*";}
		cout<<endl;}
	for(i=n+1;i>=1;i--){
		for(j=1;j<=n+1-i;j++){
		   cout<<" ";}
		for(j=1;j<=i*2-1;j++){
		   cout<<"*" ;}     
	  cout<<endl;  }
  return 0;}
/**************************************************************
	Problem: 1071
	User: zhangchenhao
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/