#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,i,d,j,s;
	cin>>n;
	for(d=1;d<=n-1;d++){
		cout<<" ";
	}
	for(d=1;d<=n;d++){
		cout<<"*";
	}
	printf("\n");
	for(d=1;d<=n-1;d++){
		for(j=1;j<=n-1-d;j++){
			cout<<" ";
		}
		cout<<"*";
		for(i=1;i<=n+(d-1)*2;i++){
			cout<<" ";
		}
		cout<<"*";
		printf("\n");
	}
	for(d=n-2;d>=1;d--){
		for(i=1;i<=n-d-1;i++){
			cout<<" ";
		}
		cout<<"*";
		for(j=1;j<=n+(d-1)*2;j++){
			cout<<" ";
		}
		cout<<"*";
		printf("\n");
	}
	for(d=1;d<=n-1;d++){
		cout<<" ";
	}
	for(d=1;d<=n;d++){
		cout<<"*";
	}
	return 0;
}
/**************************************************************
	Problem: 1011
	User: zzz
	Language: C++
	Result: Accepted
	Time:5 ms
	Memory:2076 kb
****************************************************************/