#include<bits/stdc++.h>
using namespace std;
int main(){
    int i,n,o=3;
    cin>>n;
    for(i=1;i<=n;i++){
        for(int j=1;j<=((3+(n-1)*2)-o)/2;j++){
            cout<<" ";
        }
        for(int j=1;j<=o;j++){
            cout<<"*";
        }
        for(int j=1;j<=((3+(n-1)*2)-o)/2;j++){
            cout<<" ";
        }
        o+=2;
        cout<<endl;
    }
return 0;
}
/**************************************************************
	Problem: 1069
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/