#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,j,n;
	cin>>n;
	for(i=1;i<=n-1;i++){
		cout<<" ";
	} 
	for(i=1;i<=n;i++){
		cout<<"*";
	}
	cout<<endl;
	for(i=1;i<=n-1;i++){
		for(j=1;j<=n-1-i;j++){
			cout<<" ";
		}
		cout<<"*";
		for(j=1;j<=n+(i*2-2);j++){
			cout<<" ";
		}
		cout<<"*"<<endl;
	}
	for(i=n-2;i>=1;i--){
		for(j=1;j<=n-1-i;j++){
			cout<<" ";
		}
		cout<<"*";
		for(j=1;j<=n+(i*2-2);j++){
			cout<<" ";
		}
		cout<<"*"<<endl;
	}
	for(i=1;i<=n-1;i++){
		cout<<" ";
	} 
	for(i=1;i<=n;i++){
		cout<<"*";
	}
	return 0;
}

/**************************************************************
	Problem: 1011
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2076 kb
****************************************************************/