#include <iostream.h>
#include <conio.h>
//n tedadeh vasteh satr hasst agar n manzoor kole satr bashad n ra be 2 taghsim mikonim
int main ()
{
  clrscr();
  int i,k,j,n;
  cin>>n;
  for(i=0;i<=n;i++)
  {
    for(j=1;j<=n-i;j++)
    {
     cout<<" ";
    }
    for(k=1;k<=2*i-1;k++)
    {
    cout<<"*";
    }
    cout<<endl;
  }
  for(i=n-1;i>0;i--)
  {
    for(j=n-i;j>0;j--)
    {
     cout<<" ";
    }
    for (k=2*i-1;k>0;k--)
    {
     cout<<"*";
    }
  cout<<endl;
  }

  getch();
  return 0;
}