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

/**************************************************************
	Problem: 1006
	User: linmiaoling
	Language: C++
	Result: Wrong Answer
****************************************************************/