#include<bits/stdc++.h>
using namespace std;
int main(){
    int i,i2=1;
    cin>>i;
    for(int k=i;k>0;k--){
        for(int y=1;y<k;y++)cout<<" ";
        for(int y=0;y<i2;y++)cout<<"*";
        i2+=2;
        cout<<"**";
        cout<<"\n";
    }
}
/**************************************************************
	Problem: 1069
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/