#include<bits/stdc++.h>

using namespace std;

#define int long long
using i128 = __int128;
int n, k;
const int N = 1000;

void solve(){
    cin >> n;
    vector ans(n + 1, vector<int>(n + 1));
    ans[1][1] = 1, ans[1][2] = 2;
    ans[2][1] = 3, ans[2][2] = 4;
    int nex = 5;
    for(int i = 3; i <= n; i += 2) {
        ans[1][i] = nex ++;
    }
    for(int i = 4; i <= n; i += 2) {
        ans[2][i] = nex ++;
    }
    for(int i = 3; i <= n; i ++) {
        for(int j = 1; j <= n; j ++) {
            ans[i][j] = nex;
        }
        nex ++;
    }
    for(int i = 1; i <= n; i ++) {
        for(int j = 1; j <= n; j ++) {
            if(ans[i][j]) cout << ans[i][j] << ' ';
            else cout << 1 << ' ';
        }
        cout << '\n';
    }
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int t = 1;
 //   cin >> t;
    while(t --){
        solve();
    }
}