#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, l, r) for (ll i = (l); i < (r); ++i)
#define all(x) (x).begin(), (x).end()
using ll = long long;
using pl = pair<ll,ll>;
using vl = vector<ll>;
using vvl = vector<vector<ll>>;
using vvvl = vector<vector<vector<ll>>>;
using vvvvl = vector<vector<vector<vector<ll>>>>;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <regex>
using mint=modint998244353;



int main(){
    ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    ll n;
    cin>>n;
    ll k;
    cin>>k;
    if(k==0){
        cout<<-1<<endl;
        return 0;
    }
    rep(i,0,n){
        rep(j,0,n){
            ll e=i*n+j+n*n-k;
            e%=n*n;
            cout<<e+1;
            if(j!=n-1)cout<<" ";
            else cout<<endl;
        }
    }
}