#include "bits/stdc++.h"
using namespace std;

// コンテスト中のみ
#define int long long

#define ll long long
#define rep(i,n) for(int i = 0; i < (n); i++)
#define P pair<ll,ll>
int MOD = 1000000007;
const ll INF = 1LL << 60;


signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n; cin >> n;
	vector<vector<int>>ans(n, vector<int>(n));
	rep(i, n) {
		ans[i][i] = i + n;
	}
	rep(i, n) {
		for (int j = i; j < i + n; j++) {
			ans[i][j%n] = (i + n) - (j - i);
		}
	}
	rep(i, n) {
		rep(j, n) {
			cout << (ans[i][j] % n) + 1;
			if (j != n - 1)cout << " ";
			else cout << endl;
		}
	}
	return 0;
}