#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
using namespace std;
#define rep2(i, m, n) for (int i = (m); i < (n); ++i)
#define rep(i, n) rep2(i, 0, n)


int main() {
  int n; cin >> n;
  rep(i, n) {
    rep(j, n) cout << ((i+j) % n + 1) << ' ';
    cout << '\n';
  }
  return 0;
}