#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (int)(n); i ++)
#define irep(i,n) for (int i = (int)(n) - 1;i >= 0;--i)
using namespace std;
using ll = long long;
using PL = pair<ll,ll>;
using P = pair<int,int>;
constexpr int INF = 1000000000;
constexpr long long HINF = 1000000000000000;
constexpr long long MOD = 1000000007;// = 998244353;
constexpr double EPS = 1e-4;
constexpr double PI = 3.14159265358979;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    int N; cin >> N;
    if (N == 1) {
        cout << 1 << '\n';
        return 0;
    }
    int now = 1;
    rep(i,N) {
        int x = now;
        cout << x << ' ';
        rep(j,N - 1) {
            x += N - 1;
            if (x > N) x -= N;
            if (j < N - 2) cout << x << ' ';
            else cout << x << '\n';
        }
        now += 2;
        if (now > N) now -= N;
    }
    return 0;
}