int(4)
13 13 07 07 02 02 08
13 11 11 07 02 06 08
05 05 05 09 02 08 08
05 03 12 02 02 08 08
00 03 03 02 02 01 01
00 00 03 03 03 03 01
04 00 00 10 01 01 01
float(0.00049400329589844)
Array
(
    [0] => Array
        (
            [0] => 1
            [1] => 8
        )

    [1] => Array
        (
            [0] => 7
            [1] => 13
        )

    [2] => Array
        (
            [0] => 8
            [1] => 1
        )

    [3] => Array
        (
            [0] => 13
            [1] => 7
        )

)