Array
(
    [0] => 18
    [1] => 218
    [2] => 128
    [3] => 224
    [4] => 39
    [5] => 249
    [6] => 162
    [7] => 99
    [8] => 83
    [9] => 83
)

18-218-128-224-39-249-162-99-83-83-

83-83-99-162-249-39-224-128-218-18-

El mayor es 249