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

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

    vector<vector<int>> A(N, vector<int>(N));
    int a = N*N-K+1, b = 1, cnt = 0;
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            if (cnt < K) A[i][j] = a++, cnt++;
            else A[i][j] = b++;
        }
    }

    for (auto a : A){
        for (int x : a) cout << x << ' ';
        cout << endl;
    }
}