#  inefficient.py:
 #  Author:  James Tam
 #  Python 3.X version: September 15, 2011
 #  Original Version: January 25, 2008
 # Limitation: 
 # *Cannot handle non-numeric input
 
 #  A program that conerts a letter grade to a numeric GPA. 
   
 # Note: A program written to illustrate why you should use if-
 # elif-else statements if you have exclusive multiple 
 # conditions.  While this program does produce the same output 
 # as efficient.py it does so in far less efficient fashion 
 # because now every conditional if will be checked even
 #  though only one of them will be true.

letter = input("Enter whole letter grade (A,B,C,D,F): ")
gpa = -1

if (letter == "A"):
    print("Great job!")
    gpa = 4

if (letter == "B"):
   print("Good job")
   gpa = 3
   
if (letter == "C"):
   print("Average grade")
   gpa = 2

if (letter == "D"):
   print("Min pass")
   gpa = 1

if (letter == "F"):
   print ("Failing grade")
   gpa = 0

print ("GPA: %d" %gpa, "\t", "Letter: %s" %letter)