import sequtils, strutils

let
  nk = stdin.readLine.split.map parseInt
  n = nk[0]
  k = nk[1]

echo:
  if (n mod k) == 0:
    let
      x = n div k
      ans = repeat(1, x) & repeat(2, n.pred x)
    ans.join " "

  else:
    "-1"