Medium Accuracy: 36.76% Submissions: 30774 Points: 4

Given an array of integers and a number k, write a function that returns true if given array can be divided into pairs such that sum of every pair is divisible by k.

Input:
The first line of input contains an integer T denoting the number of test cases. The T test cases follow. Each test case contains an integer n denoting the size of the array. The next line contains the n space separated integers forming the array. The last line contains the value of k.

Output:
Print "True" (without quotes) if given array can be divided into pairs such that sum of every pair is divisible by k or else "False" (without quotes).