#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j;
    cin>>n;
    for(i=1;i<=n;i++){
        for(j=1;j<=(n+1)-i;j++){
            cout<<" ";
        }
        for(j=1;j<=2*i-1;j++){
            cout<<"*";
        }
        cout<<endl;
    }
    for(i=n+1;i>=1;i--){
        for(j=1;j<=(n+1)-i;j++){
            cout<<" ";
        }
        for(j=1;j<=2*i-1;j++){
            cout<<"*";
        }
        cout<<endl;
    }
     
}
/**************************************************************
	Problem: 1071
	User: huanghengyi
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/