array(2) {
  [1]=>
  array(2) {
    [0]=>
    int(2772)
    [1]=>
    int(6551)
  }
  [9]=>
  array(4) {
    [0]=>
    int(2785)
    [1]=>
    int(6602)
    [2]=>
    int(7135)
    [3]=>
    int(9255)
  }
}