Given a singly linked list and a number k. Write a function to find the (N/k)^th element, where N is the number of elements in the list. We need to consider ceil value in case of decimals.

Input:
The first line of input contains an integer T denoting the number of test cases. The first line of each test case consists of an integer N. The second line consists of N spaced integers.The last line consists of an integer k.

Output:
Print the data value of (N/k)th node in the Linked List.

User Task:
The task is to complete the function fractional_node() which should find the n/kth node in the linked list and return its data value.

Constraints:
1 <= T <= 100
1 <= N <= 100

Example:
Input:
2
6
1 2 3 4 5 6
2
5
2 7 9 3 5
3

Output:
3
7

Explanation:
Testcase 1: 6/2^th element is the 3^rd(1-based indexing) element which is 3.