#include <iostream>
//jakub hausner
using namespace std;

int main() {
  int MAX;

  cin >> MAX;

  const int MAX_SPACE_COUNT = MAX / 2;

  for (int i = 0; i < MAX; i++) {
    int spaceCount = MAX_SPACE_COUNT - i;

    if (spaceCount < 0) spaceCount *= -1;

    for (int a = spaceCount; a >= 0; a--) {
      cout << " ";
    }
    cout << "*";
    
    int moreSpace = MAX_SPACE_COUNT - spaceCount - 1;
    for (int b = 0; b < moreSpace;b++) {
      cout << " ";
    }
    if (moreSpace >= 0) {
      cout << "*";
    }
    cout << "\n";
  }
}