Array en orden inverso:
Array ( [0] => 553 [1] => 391 [2] => 504 [3] => 366 [4] => 337 [5] => 891 [6] => 438 [7] => 121 [8] => 241 [9] => 691 [10] => 137 [11] => 225 [12] => 754 [13] => 713 [14] => 172 [15] => 949 [16] => 378 [17] => 108 [18] => 450 [19] => 16 )