#include<iostream>
#include <cstring>
using namespace std;
int main(){
    int n,i,j,k,c;
    cin>>n;
    c=1;
    for(int i=1;i<=n+1;i++){
    	for(int k=n;k>=i;k--){
        	cout<<" ";
		}
        for(int j=1;j<=c;j++){
        	cout<<"*";
		}
		cout<<endl;
		c+=2;
    }
    c=n*n-(n-1)*(n-1);
    for(int i=1;i<=n;i++){
    	for(int k=0;k<i;k++){
        	cout<<" ";
		}
        for(int j=1;j<=c;j++){
        	cout<<"*";
		}
		cout<<endl;
		c-=2;
    }
    return 0;
}


/**************************************************************
	Problem: 1071
	User: xuanhua
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/