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

/**************************************************************
	Problem: 1230
	User: wtq001
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/