quizzes   = mark for online quizzes        (out of  5)
labs      = mark for lab exercises         (out of  7)
ass1      = mark for assignment 1          (out of  9)
ass2      = mark for assignment 2          (out of 14)
pracExam  = mark for Prac part of exam     (out of 35)
theoExam  = mark for Theory part of exam   (out of 30)
exam      = (pracExam+theoExam)            (out of 65)

okEffort  = (quizzes≥3 && labs≥4 && ass1≥4 && ass2≥6)

okExam    = (exam > 26/65)             (after scaling)

mark      = quizzes+labs+ass1+ass2+exam

grade     = HD|DN|CR|PS  if mark >= 50 && okExam
          = FL           if mark <  50 && okExam
          = UF           if !okExam