#include <bits/stdc++.h>
using namespace std;
int main(void){
    int 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++)cout<<(i*n+j<k?n*n-k+i*n+j+1:i*n+j-k+1)<<(j==n-1?"\n":" ");
    return 0;
}