#include <iostream>
#include <cstdio>
using namespace std;
int main()
{
int n;
cin >> n;
int cx = n/2; int cy = n/2;
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
if(abs(i-cx)+abs(j-cy)<=n/2)
cout << '*';
else cout <<' ';
}
cout<<endl;
}
return 0;
}