Problem $1.$ Display an $n$ by $n$ asterisks

For this problem, you need to complete the following tasks.

Prompt the user for a positive integer $n.$

If the user enters a positive integer for $n,$ then write a for loop to display $n$ rows of the numbers $1$ through $n($but counting down$)$ separated by a space in each row;

if $n$ is not positive, display the message "Invalid Input" and ask the user to type $\text{'}y\text{'}$ or $\text{'}Y\text{'}$ if they wish to 'Try Again.$\text{'}$ Use a while True loop to check their input and return back to the top of the while True loop if they answer yes.

Test your program by entering different values of $n.$

Below is a sample output:

Enter a positive integer: $6$

$6,5,4,3,2,1$

$6,5,4,3,2,1$

$6,5,4,3,2,1$

$6,5,4,3,2,1$

$6,5,4,3,2,1$

$6,5,4,3,2,1$