Iterators are used to iterate over vectors, maps, sets etc. Here we will learn to iterate over a vector from begin to end.
You are given a vector V of size n. You need print its elements.

Input Format:
The first line of input contains T denoting the number of testcases. T testcases follow. Each testcase contains two lines of input. The first line contains n denoting the size of the array. The second line contains the elements of the vector.

Output Format:
For each testcase, in a new line, print the required output.

Your Task:
Since this is a function problem, you don't need to take any input. Just complete the function iter() that takes two iterators as parameters.

Constraints:
1 <= T <= 100
1 <= n <= 10⁷
0 <= V_i <= 10⁷

Examples:
Input:
1
5
1 2 3 4 5
Output:
1 2 3 4 5