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

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N;
    cin >> N;
    vector<vector<int>> V(N, vector<int> (N, 0LL));
    // fill odd numbers
    int k = 1;
    for (int y = 0; y < N / 2; ++y){
        if (y % 2){
            for (int x = N - 1; x >= 0; --x){
                V[y][x] = k;
                k += 2;
            }
        }else{
            for (int x = 0; x < N; ++x){
                V[y][x] = k;
                k += 2;
            }
        }
    }

    // fill even numbers
    k = 2;
    for (int y = N / 2; y < N; ++y){
        if ((y - N / 2) % 2){
            for (int x = N / 2 - 1; x >= 0; --x){
                V[y][x] = k;
                k += 2;
            }
            for (int x = N - 1; x >= N / 2; --x){
                V[y][x] = k;
                k += 2;
            }
        }else{
            for (int x = N / 2; x < N; ++x){
                V[y][x] = k;
                k += 2;
            }
            for (int x = 0; x < N / 2; ++x){
                V[y][x] = k;
                k += 2;
            }
        }
    }

    for (int y = 0; y < N; ++y){
        for (int x = 0; x < N - 1; ++x){
            cout << V[y][x] << ' ';
        }
        cout << V[y][N - 1] << '\n';
    }
    return 0;
}