#include<iostream>
using namespace std;

int main(){
	int i,j,n,y,x;
	cin>>n;
	n=(n+1)/2;
	//ÕýÈý½Ç 
	for(i=n;i>=1;i--){
		if(i==1){
			
		}else{
			for(j=1;j<=n-i;j++){
			cout<<" ";
			
		    } 
		}
		
		if(i==1){
			
		}else{
			for(j=1;j<=2*i-1;j++){
			cout<<"*";
		    }
		}
		
		if(i==1){
			
		}else{
			cout<<endl;
		}
		
		
	} 
	for(i=1;i<=n;i++){
		for(j=1;j<=n-i;j++){
			cout<<" ";
			
		}
		for(j=1;j<=2*i-1;j++){
			cout<<"*";
		}
		cout<<endl;
	}
	
} 
/**************************************************************
	Problem: 1073
	User: admin
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/