#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef long long ll;
typedef pair<int,int> P;
constexpr int INF = 1e9;

int main() {
  int n;
  cin >> n;
  
  
  rep(i,n) {
    rep(j,n) cout << (2 * i - j + n) % n + 1 << " ";
    cout << endl;
  }

  return 0;
}