#include<bits/stdc++.h>
using namespace std;
int main()
{
    int i,n,j,o;
    cin>>n;
    for(i=1;i<=n/2+1;i++){
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        for(j=1;j<=n+1-i*2;j++){
            cout<<" ";
        }
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        cout<<endl;
    }
    for(i=1;i<=n/2;i++){
        for(j=(n+1-i*2)/2;j>=1;j--){
            cout<<"*";
        }
        for(j=1;j<=i*2;j++){
            cout<<" ";
        }
        for(j=(n+1-i*2)/2;j>=1;j--){
            cout<<"*";
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1247
	User: chenjiahui
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/