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

int main() {
    int n, k; cin >> n >> k;
    if (k == 0) {
        cout << -1 << endl; return 0;
    }

    rep(i, n) {
        rep(j, n) {
            if (i * n + j + 1 <= k) cout << n * n - k + (i * n + j + 1) << " ";
            else cout << i * n + j + 1 - k << " ";
        }
        cout << endl;
    }
}