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