Binaray search tree (reverse, postorder)

We have the following sequence of numbers : 10, 2, 7, 6, 3, 8, 5, 18, 1 and 9

a.) Draw binary search tree, which originate, if numbers from sequence are inputed into empty binary search tree and write out sequence of numbers in reverse traversal of a tree

b.)Draw binary search tree, which originate, if numbers from sequence are inputed into empty binary search tree in **reverse **order and write out sequence of numbers in **preorder **traversal.

Thanks for you help guys