array(4) {
  [8]=>
  array(1) {
    [0]=>
    int(140)
  }
  [1]=>
  array(1) {
    [0]=>
    int(4414)
  }
  [9]=>
  array(3) {
    [0]=>
    int(4415)
    [1]=>
    int(4500)
    [2]=>
    int(4554)
  }
  [21]=>
  array(1) {
    [0]=>
    int(9639)
  }
}