#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j;
    cin>>n;
    for(i=1;i<=n;i++) {
        for(j=1;j<=n-i;j++) cout<<" ";
        for(j=1;j<=2*i-1;j++){
            if(i!=n){
                if(j==1||j==2*i-1) cout<<"*";
                else cout<<" ";
            }
            else cout<<"*";
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1225
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/