array(6) {
  [0]=>
  string(3) "200"
  [1]=>
  string(4) "-200"
  [2]=>
  string(3) "020"
  [3]=>
  string(4) "0-20"
  [4]=>
  string(3) "002"
  [5]=>
  string(4) "00-2"
}