#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<=2*i-1;j++) {
            cout << "*";
        }
        cout<<endl;
    }
    for (int i=1;i<=n;i++) {
        for (int j=1;j<=i;j++) {
            cout<< " ";
        }
        for (int j=1; j<=2*(n + 1 - i) - 1; ++j) {
            cout << "*";
        }
        cout << endl;
    }


	return 0;
}

/**************************************************************
	Problem: 1071
	User: sf751616
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/