array(10) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(4)
  [4]=>
  int(5)
  [5]=>
  int(6)
  [6]=>
  int(2)
  [7]=>
  int(4)
  [8]=>
  int(6)
  [9]=>
  int(4)
}
int(12)