array(23) {
  [0]=>
  string(3) "978"
  [1]=>
  string(4) "1015"
  [2]=>
  string(4) "1017"
  [3]=>
  string(4) "1825"
  [4]=>
  string(4) "1829"
  [5]=>
  string(4) "4160"
  [6]=>
  string(4) "7940"
  [7]=>
  string(4) "7956"
  [8]=>
  string(4) "7957"
  [9]=>
  string(4) "8106"
  [10]=>
  string(4) "8168"
  [11]=>
  string(4) "8184"
  [12]=>
  string(4) "8185"
  [13]=>
  string(4) "8814"
  [14]=>
  string(4) "8815"
  [15]=>
  string(4) "8831"
  [16]=>
  string(4) "8832"
  [17]=>
  string(4) "8845"
  [18]=>
  string(4) "8861"
  [19]=>
  string(4) "8862"
  [20]=>
  string(4) "8930"
  [21]=>
  string(4) "8934"
  [22]=>
  string(4) "8935"
}