#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base ::sync_with_stdio(false);
  cin.tie(NULL);
  int n;
  cin >> n;
  for (int i = 0; i <= n; i++) {
    for (int j = 1; j <= n * 2 - i * 2; j++) cout << " ";
    for (int j = 0; j <= i; j++) {
      if (i == 0)
        cout << "0";
      else
        cout << j << " ";
    }
    for (int j = i - 1; j >= 0; j--) {
      if (j != 0)
        cout << j << " ";
      else
        cout << j;
    }
    cout << endl;
  }
  for (int i = n - 1; i >= 0; i--) {
    for (int j = 1; j <= n * 2 - i * 2; j++) cout << " ";
    for (int j = 0; j <= i; j++) {
      if (i == 0)
        cout << "0";
      else
        cout << j << " ";
    }
    for (int j = i - 1; j >= 0; j--) {
      if (j != 0)
        cout << j << " ";
      else
        cout << j;
    }
    cout << endl;
  }
}
