#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<ll, ll> P;
typedef vector<ll> VI;
typedef vector<VI> VVI;
const ll MOD = 1000000007;
const ll INF = 1e18;
#define REP(i, n) for(int i = 0; i < n; i++)
#define ALL(v) v.begin(), v.end()

int main() {
	int n; cin >> n;
	REP(i,n){
			REP(j,n){
				cout << ((i*2)%n+n-j)%n+1 << ' ';
			}
			cout << endl;
	}
	return 0;
}