For the following sequence of numbers, create $ab$ tree, $b=3.$ Show only the final tree.

$35,27,6,38,39,16,26,2,25,7,33,1,42,8,13,40,41,23,34,29,14,36,9,28,31$

$12,32,17,20,22,37,21,10,11,15,3,18,30,24,5,4,19.$Solve it