Associated Course(s):
Amazon SDE Test Series

Given a matrix M of n*n size, the task is to complete the function which prints its elements in diagonal pattern as depicted below.

**Input:**

The first line of input contains an integer denoting the no of test cases. Then T test cases follow. Each test case contains an integer N denoting the size of the square matrix. In the next line are N*N space separated values of the matrix M.

**Output:**

For each test case output will be the space separated values of the matrix elements in diagnol form.

**Constraints:**

1<=T<=100

0<=n<=20

**Example(To be used only for expected output):
Input:**

2

3

1 2 3 4 5 6 7 8 9

2

1 2 3 4

1 2 4 7 5 3 6 8 9

1 2 3 4

Author: Shubham Joshi 1

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