4<br />Array
(
    [0] => 3
    [1] => 4
    [2] => 5
    [3] => 9
    [4] => 10
)
Array
(
    [0] => 3
    [1] => 4
    [2] => 5
    [3] => 9
    [4] => 10
    [5] => -5
)