#![allow(unused_imports)]

fn main() {
    input! {
        n: usize, k: usize,
    }
    if k == 0 {
        println!("-1");
        return;
    }
    let ans = (n*n-k+1..=n*n).chain(1..k).collect_vec();
    println!("{}", (0..n).map(|i| (0..n).map(|j| ans[i*n+j]).join(" ")).join("\n"));
}

/*
5 6 7
8 9 1
2 3 4
*/

use proconio::{input, marker::*};
use itertools::{iproduct, izip, Itertools as _};
use std::{cmp::Reverse, collections::*};

#[macro_export]
macro_rules! chmax {
    ($a:expr, $b:expr) => {{
        let tmp = $b;
        if $a < tmp {
            $a = tmp;
            true
        } else {
            false
        }
    }};
}

#[macro_export]
macro_rules! chmin {
    ($a:expr, $b:expr) => {{
        let tmp = $b;
        if $a > tmp {
            $a = tmp;
            true
        } else {
            false
        }
    }};
}

#[macro_export]
/// mvec![]
macro_rules! mvec {
    ($val:expr; ()) => {
        $val
    };
    ($val:expr; ($size:expr $(,$rest:expr)*)) => {
        vec![mvec![$val; ($($rest),*)]; $size]
    };
}