Class Exercise $2$

program source code $($Ada$-$like but a pseudocode$)$ begin procedure main is Manually execute the program by assuming

$($a$)$ pass by value

$($b$)$ pass by value$-$result

$($c$)$ pass by reference

$($d$)$ pass by name.

What is the output generated for each of the above calls. Show the workings of each by showing the value at each statement inside the function.