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

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

    int N,K; cin >> N >> K;
    if(K == 0){cout << "-1\n"; return 0;}
    int now = 0;
    for(int i=0; i<N; i++){
        if(K > N || K <= 0){
            for(int k=0; k<N; k++) cout << now+1 << " ",now++;
            K -= N;

        }
        else{
            for(int k=0; k<K; k++) cout << N*N-K+k+1 << " ";
            for(int k=K; k<N; k++) cout << N*N-N+1+k-K << " ";
            K = 0;
        }
        cout << endl;
    }
}