module DiceMaking
  def solve(n, k)
    if n % k == 0
      x = n / k
      ([1] * x + (x + 1 .. n).to_a).join(" ")
    else
      "-1"
    end
  end

  module_function :solve
end

n, k = gets.chomp.split(/\s+/).map(&:to_i)
puts DiceMaking.solve(n, k)