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





/**************************************************************
	Problem: 1071
	User: cx001
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/