$4\mathrm{.}3.$ Create C$++$ full program that allows Exams Officer to add a Semester Mark and Examination Mark, and Give Final Mark as Average of the two. The program must then do the following:

$$ Display Semester mark, Examination mark, and Final mark

$$ If final mark less than $40$ results $=$"FAIL SUBMINIMUM"

$$ If final mark greater than or equal to $40$ and less than $50$ results$=$"FAlL SUPPLEMENTARY"

$$ If final mark greater than or equal to $50$ and less than $75$ resuliss$=$"PASS"

$$ If final mark greater than $75$ and less than $100$ results$=$"PASS DISTINCTION"

$$ Otherwise results$=$ "Invalid Input"