Write a function $[$Low$,$ Upp$]$

Write a function $[$Low$,$ Upp$]=$ LowerUpper $($n$)$ which has a single scalar input n and two

Omat puts Low and Upp, which are n x n$,$ lower$-$triangular and upper$-$triangular

respectively. The non$-$zero entries of both Low and Upp must be the sum of the row and column numbers. For example:

$>>[$Low$,$ Upp$]=$ LowerUpper $(4)$

Low $=$

$2000$

$3400$

$4560$

$5678$

Upp $=$

$2345$

$0456$

$0067$

$0008$

The function must utilize nested for$-$loops.