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

/**************************************************************
	Problem: 1070
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2072 kb
****************************************************************/