#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j;
    cin>>n;
    n=n/2+1;
    for(i=1;i<=n;i++){
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        for(j=1;j<=(n-1)*2+1-2*i+1;j++){
            cout<<" ";
        }
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        cout<<endl;
    }
    for(i=n-1;i>=1;i--){
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        for(j=1;j<=(n-1)*2+1-2*i+1;j++){
            cout<<" ";
        }
        for(j=1;j<=i;j++){
            cout<<"*";
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1247
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/