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

/**************************************************************
	Problem: 1006
	User: chenjingqi
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/