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