#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;

    // 打印上半部分
    for (int i = 0; i < n + 1; i++) {
        for (int j = 0; j < n - i; j++) {
            cout << " ";
        }
        for (int k = 0; k < 2 * i + 1; k++) {
            cout << "*";
        }
        cout << endl;
    }

    // 打印下半部分
    for (int i = n - 1; i >= 0; i--) {
        for (int j = 0; j < n - i; j++) {
            cout << " ";
        }
        for (int k = 0; k < 2 * i + 1; k++) {
            cout << "*";
        }
        cout << endl;
    }

    return 0;
}    
/**************************************************************
	Problem: 1071
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:24 ms
	Memory:2072 kb
****************************************************************/