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