#include<bits/stdc++.h>
using namespace std;
int n,i,j; 
int main(){
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=n-i;j++){
			cout<<" ";
		}
		cout<<"*";
		for(j=1;j<=n+(i-1)*2-2;j++){
			if(i==1) cout<<"*";
			else cout<<" ";
		}
		cout<<"*";
		cout<<endl;
	}
	for(i=n-1;i>=1;i--){
		for(j=1;j<=n-i;j++){
			cout<<" ";
		}
		cout<<"*";
		for(j=1;j<=n+(i-1)*2-2;j++){
			if(i==1) cout<<"*";
			else cout<<" ";
		}
		cout<<"*";
		cout<<endl;
	}
	return 0;
}
/**************************************************************
	Problem: 1011
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/