Input: Array ( [0] => 1 [1] => 3 [2] => 4 [3] => 6 [4] => 7 [5] => 10 [6] => 12 [7] => 15 [8] => 23 [9] => 26 [10] => 35 [11] => 56 [12] => 78 [13] => 99 )