Array
(
    [4] => Array
        (
            [0] => 50
            [1] => 53
            [2] => 49
        )

    [6] => Array
        (
            [0] => 108
        )

    [1] => Array
        (
            [0] => 4
        )

    [0] => Array
        (
            [0] => 1079
        )

)