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

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

    long long n, k;
    cin >> n >> k;

    long long total = n * n;
    if (k == 0) {
        cout << -1 << '\n';
        return 0;
    }

    long long lowCount = total - k;
    for (long long i = 0; i < n; i++) {
        for (long long j = 0; j < n; j++) {
            long long index = i * n + j + 1;
            long long value = (index <= k) ? (lowCount + index) : (index - k);
            if (j > 0) {
                cout << ' ';
            }
            cout << value;
        }
        cout << '\n';
    }

    return 0;
}