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

/**************************************************************
	Problem: 1071
	User: linweilun
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/