Problem 8073. Matrix Construction I

Given n, construct a matrix as shown in the example below.

Example

For n=8, the output should look like this:

 1 2 3 4 0 0 0 0
 1 2 3 4 0 0 0 0
 1 2 3 4 0 0 0 0
 1 2 3 4 0 0 0 0
 0 0 0 0 4 3 2 1
 0 0 0 0 4 3 2 1
 0 0 0 0 4 3 2 1
 0 0 0 0 4 3 2 1