#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  ;
  int n;
  cin >> n;
  for (int i = 0; i <= n; i++) {
    for (int j = 0; j < n - i; j++) {
      cout << " ";
      ;
      cout << " ";
      ;
    }
    for (int j = 0; j < i; j++) {
      cout << j;
      cout << " ";
      ;
    }
    for (int j = i; j > 0; j--) {
      cout << j;
      cout << " ";
      ;
    }
    cout << 0;
    cout << "\n";
    ;
  }
  for (int i = n - 1; i >= 0; i--) {
    for (int j = 0; j < n - i; j++) {
      cout << " ";
      ;
      cout << " ";
      ;
    }
    for (int j = 0; j < i; j++) {
      cout << j;
      cout << " ";
      ;
    }
    for (int j = i; j > 0; j--) {
      cout << j;
      cout << " ";
      ;
    }
    cout << 0;
    cout << "\n";
    ;
  }
  return 0;
}
