How to write an efficient C code(with less number of loops) for getting the following Sample input and output of a 2D (not necessarily square)matrix?

Question

Input:

1 2 3 4
5 8 9 10
4 5 8 11
7 5 3 1

Output:

7 5 3 1
4 5 8 11
5 8 9 10
1 2 3 4

A conventional logic would