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

#define rep(i, a, b) for (ll i = a; i < b; i++)
using ll = long long;

int main(){
    int n, k;
    cin >> n >> k;
    if(k == 0) {
        cout << -1 << endl;
        return 0;
    }
    vector<vector<int>> v(n, vector<int>(n, -1));
    int d = 1;
    rep(i, 0, n) rep(j, 0, n) {
        int t = i * n + j;
        if(t >= k) v[i][j] = d++;
    }
    rep(l, 0, n) {
        rep(i, l, n) if(v[l][i] < 0) v[l][i] = d++;
        rep(i, l, n) if(v[i][l] < 0) v[i][l] = d++;
    }
    rep(i, 0, n) {
        rep(j, 0, n) cout << v[i][j] << " ";
        cout << endl;
    }
}