#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n+1;i++){
        for(int j=1;j<=n+1-i;j++){
            cout<<" ";
        }
        for(int j=1;j<=i*2-1;j++){
            cout<<"*";
        }
        cout<<endl;
    }
    for(int i=n;i>=1;i--){
        for(int j=1;j<=n+1-i;j++){
            cout<<" ";
        }
        for(int j=1;j<=i*2-1;j++){
            cout<<"*";
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1071
	User: jiangyuanfeng
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/