Create processes A$,$ B and C from the same code file using fork. In this

case you will have a single code file where the parent process can serve

as Process A$,$ and two child processes serve as Process B and C$.$

Consider TWO implementations here:

$($i$)$ Process B and C are two separate child processes $($using two different

forks from the parent process$)$

$($ii$)$ Process B and C are nested forks $($here Process C is forked from

within process B and NOT from the parent process$).$

Deliverable: TWO different code files; one with regular forks, other one with

nested forks.

Expected Output:

$10$ I AM PROCESS A whose id is : $4001$

$20$ I AM PROCESS B whose id is : $4002$

$30$ I AM PROCESS C whose id is : $4003$

Good Bye World, I am Done!!

$($Note that process id may change for your program.$)$