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


	return 0;
}

/**************************************************************
	Problem: 1071
	User: wuzihang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/