#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--)
using namespace std;
using ll = long long;

int main() {
  int n;
  cin >> n;
  vector<vector<int>> ans(n, vector<int>(n, -1));
  ans[0][0] = 1;
  int k = 1;
  rep(i, n / 2) {
    rep(j, n / 2) {
      ans[i][j] = k++;
      ans[i + n / 2][j + n / 2] = k++;
    }
  }
  rep(i, n / 2) {
    repr(j, n / 2) {
      ans[i][j + n / 2] = k++;
      ans[i + n / 2][j] = k++;
    }
  }
  rep(i, n) {
    rep(j, n) {
      cout << ans[i][j] << ' ';
    }
    cout << '\n';
  }
}