#include<bits/stdc++.h>
#define rep(i,N) for(ll (i)=0;(i)<(N);(i)++)
#define chmax(x,y) x=max(x,y)
#define chmin(x,y) x=min(x,y)
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
const int mod = 1000000007;
const int INF = 1001001001;

int main() {
  int n;
  cin >> n;
  
  rep(i, n) {
    rep(j, n) {
      int d = (2 * i - j + n) % n + 1;
      printf("%d%c", d, (j == n-1 ? '\n' : ' '));
    }
  }
}