#include <iostream>
#include <cstdio>

using namespace std;

const int N = 310;

int n, m, a[N][N], idx;

int main() {
    scanf("%d", &n);

    m = n / 2;
    for (int i = 1; i <= m; ++i) {
        for (int j = 1; j <= m; ++j) {
            a[i][j] = ++idx;
            a[i + m][j + m] = ++idx;
        }
    }

    for (int i = 1; i <= m; ++i) {
        for (int j = m; j >= 1; --j) {
            a[i][j + m] = ++idx;
            a[i + m][j] = ++idx;
        }
    }

    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= n; ++j) {
            printf("%d%c", a[i][j], " \n"[j == n]);
        }
    }

    return 0;
}