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


int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll N,K;
    cin>>N>>K;
    if(K==0){
        cout<<-1<<"\n";
    }
    ll c=N*N-K;
    for(int i=0;i<N;i++){
        for(int j=0;j<N;j++){
            cout<<c+1<<" \n"[j==N-1];
            c++;
            c%=(N*N);
        }
    }
}