#include <iostream>

using namespace std;

int main()

{

   int n,p=-1, i, j;

   cin>>n;

   for (i=1;i<=n/2+1;++i) {

     for (j=1;j<=n/2+1-i;++j){

       cout<<" ";

     }

     cout<<"*";

     for (j=1;j<=p;++j){

       cout<<" ";

     }

       if (p>0) { cout<<"*";}

       p+=2;cout<<"\n";

   }

   p=n-3;

   for (i=1; i<=n/2; ++i)

   {

       for (j=1; j<=i; ++j)

           cout << " ";

       cout << "*";

        for (j=1;j<p;++j){

       cout<<" ";

     }

       if (p>0) { cout<<"*";}

       p-=2;cout<<"\n";

   }

}