Array
(
    [4] => Array
        (
            [0] => 50
            [1] => 52
            [2] => 53
        )

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

    [6] => Array
        (
            [0] => 113
        )

    [0] => Array
        (
            [0] => 1185
        )

)