#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: fuyijun
	Language: C
	Result: Compile Error
****************************************************************/