#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    int n, k;
    cin >> n >> k;
    if (k == 0) {
        cout << -1 << endl;
        return 0;
    }
    rep(i, n) {
        rep(j, n) {
            int d = (i * n + j - k + n * n) % (n * n);
            cout << d + 1 << " ";
        }
        cout << endl;
    }
    return 0;
}