n, k = read_line.split.map(&.to_i)
a = Array.new(n) { |i| Array.new(n) { |j| n * n - i * n - j } }
if k == 0
  puts -1
  exit
end
k -= 1
if k <= n - 1
  a[..k] = a[..k].sort
  puts a.map { |r| r.join(" ") }.join("\n")
  exit
end
a.sort!
k -= n - 1
n.times do |i|
  if k <= n - 1
    a[i][..k] = a[i][..k].sort
    break
  end
  a[i].sort!
  k -= n - 1
end
puts a.map { |r| r.join(" ") }.join("\n")