int(8)
17 02 06 06 00 16 16
12 15 05 05 00 16 16
05 05 05 01 07 03 03
05 09 09 01 01 03 08
05 09 09 04 13 03 08
05 10 09 11 03 03 08
10 10 09 11 11 14 14
float(0.00028610229492188)
Array
(
    [0] => Array
        (
            [0] => 0
            [1] => 6
        )

    [1] => Array
        (
            [0] => 2
            [1] => 15
        )

    [2] => Array
        (
            [0] => 4
            [1] => 13
        )

    [3] => Array
        (
            [0] => 6
            [1] => 0
        )

    [4] => Array
        (
            [0] => 12
            [1] => 17
        )

    [5] => Array
        (
            [0] => 13
            [1] => 4
        )

    [6] => Array
        (
            [0] => 15
            [1] => 2
        )

    [7] => Array
        (
            [0] => 17
            [1] => 12
        )

)