# kuPellaKeS BST

A Binary Search Tree (BST) is a tree data structure, which obeys the following properties: • Each nodes has at most 2 children. • Each node except the root has exactly one parent. • There is exactly one root node. The root node does not have any parents. • If a node has a left child, all values in the left subtree are less than or equal to the value of the value of the node itself. • If a node has a right child, all values in the right subtree are strictly greater than the value of the node itself. A kuPellaKeS BST is a BST which have the following properties: • The difference between sum of all values in the left subtree and sum of all values in the right subtree is minimum. • If there is more than one way to minimize the difference, sum of all values in the left subtree is maximum. • The right and left subtrees are also kuPellaKeS BST’s. The following rules describe a representation way for a BST: • A BST with no subtrees is denoted by “value_of_root” (Quotes included for clarity). • A BST which have only one subtree (Either left or right subtree), is denoted by “value_of_root(representation_of_subtree)” (Quotes included for clarity). • A BST which have both of its subtrees, is denoted by “value_of_root(representation_of_left_subtree,representation_of_right_subtree)”. Given a list of integer numbers, output the representation of the kuPellaKeS BST having those numbers as node values. Input The first line of input gives the number of cases, T. Then, T test cases follow. Each one starts with a line containing number of values 1 ≤ n ≤ 1000. Next line contains n integer numbers separated by a single space. Output For the x-th test case, your program must output the line containing ‘Case #x:’, followed by represen- tation of the kuPellaKeS BST having the given numbers as node values.

2/2 Sample Input 3 10 1 2 3 4 5 6 7 8 9 10 5 10101 4 -1 -2 -3 -4 Sample Output Case #1: 7(5(3(2(1),4),6),9(8,10)) Case #2: 1(1(1(0(0)))) Case #3: -3(-4,-2(-1))