You are given a N x M matrix of integers, return the spiral path of the matrix

Example Of Spiral Path

Input Format:

The first line contains an integer 'T' which denotes the number of test cases or queries to be run. Then the test cases follow.

The first line of each test case contains two single space separated integers N and M, denoting the number of rows and columns respectively.

The next 'N' lines, each contains 'M' single space-separated integers representing the elements in a row of the matrix.

Output format :

For each test case/query, print the spiral path of the given matrix.

Output for every test case will be printed in a separate line.

Note:

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

Constraints:

1 <= T <= 5
1 <= N  <= 10^2
1 <= M <= 10^2
-10^9 <= mat[i][j] <= 10^9

Time Limit: 1second