#include <iostream>

using namespace std;
int main() {
  int n;
  cout << "Enter Number: ";
  cin >> n;
  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= 2 * n + 1; j++)
      if (j >= n - i + 2 && j <= n + i)
        cout << '*';
      else cout << ' ';
    cout << endl;
  }
  return 0;
}