#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using ll=long long;
using ld=long double;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vl=vector<ll>;
using vvl=vector<vl>;
using vvvl=vector<vvl>;
using graph=vector<vector<int>>;
using mint=modint998244353;
const ll INF=(1ll<<61)-1;

int main(){
  ll N,K; cin>>N>>K;
  if(K==0){
    cout<<-1<<endl;
    return 0;
  }
  for(int i=0;i<N;i++){
    for(int j=0;j<N;j++){
      if(i*N+j<K)cout<<N*N-K+(i*N+j)+1<<" ";
      else cout<<(i*N+j)-K+1<<" ";
    }
    cout<<endl;
  }
}