#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n/2;i++){
        for(int j=1;j<=i-1;j++) cout<<" ";
        for(int j=1;j<=n+2-i*2;j++) cout<<"*";
        cout<<endl;
    }
    for(int i=1;i<=n/2+1;i++){
        for(int j=1;j<=n/2+1-i;j++) cout<<" ";
        for(int j=1;j<=i*2-1;j++) cout<<"*";
        cout<<endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1073
	User: wangyousi
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/