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

return 0;
}

/**************************************************************
	Problem: 1247
	User: cx001
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2072 kb
****************************************************************/