Array
(
    [0] => Array
        (
            [0] => 5
            [1] => 2
            [2] => 1
            [3] => 11
            [4] => 15
        )

    [1] => Array
        (
            [0] => 4
            [1] => 7
            [2] => 67
            [3] => -9
            [4] => 20
        )

    [2] => Array
        (
            [0] => 9
            [1] => 0
            [2] => 45
            [3] => 3
            [4] => 30
        )

)