#include<bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
#define all(x) x.begin(), x.end()
#define rep(i, limit) for (int i = 0; i < (int)limit; i++)
constexpr char nl = '\n';
constexpr int INF = 1'000'000'000;
constexpr ll LINF = 2'000'000'000'000'000'000LL;
template<typename T> bool chmin(T& a, T b){if(a > b){a = b; return true;} return false;}
template<typename T> bool chmax(T& a, T b){if(a < b){a = b; return true;} return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int N,K;cin >> N >> K;
    if(K == 0){
        cout << -1 << nl;
        return 0;
    }
    K--;
    
    int top_left = N*N - K;
    vector<vector<int>>ans(N,vector<int>(N));
    ans[0][0] = top_left;

    vector<bool>used(N*N+1);
    used[top_left] = true;
    int current = 1;
    for(int i = 0; i < N*N; i++){
        int h = i/N;
        int w = i%N;

        while(used[current])current++;
        if(ans[h][w] == 0){
            ans[h][w] = current;
            used[current] = true;
        }
    }

    rep(i,N){
        rep(j,N){
            cout << ans[i][j] << " ";
        }
        cout << nl;
    }
}