Remove Consecutive Duplicates Problem Statement

Given a string str of size N, your task is to recursively remove consecutive duplicates from this string.

Input:

T (number of test cases)
N (length of the string for each test case)
str (the string of size N for each test case)

Output:

For each test case, output the modified string with no consecutive duplicates, each result on a new line.

Example:

Input:

1
7
aazbbby

Output:

azby

Constraints:

• 1 ≤ T ≤ 5
• 1 ≤ N ≤ 1000
• The string contains only lowercase English letters.

Note:

You do not need to print anything, it has already been taken care of. Just implement the given function.