def main():
    correctList = ["A","C","A","B","B","D","D","A","C","A","B","C","D","C","B"]
    studentList = ["","","","","","","","","","","","","","",""]
    correctList = [False,False,False,False,False,False,False,False,False,False,False,False,False,False,False]
    numCorrect = 0
    numIncorrect = []
    again = "y"
    passCount =0
    while again == "y":
        print("\nQuiz Grading App ...")
        studentName = input("\nEnter name of student:  ")
        fileName = input(" \"   quiz answers file: ")
        studentList = open(fileName,"r")
        for i in range(15):
            if studentList.readline == correctList[i]:
                numCorrect +=1
            else:
                numIncorrect.append(i+1)
        studentList.close
        print(studentName + " Quiz Results")
        print("---------------------------------------------")
        print("Correct Answers: ",numCorrect)
        print("Incorrect Answers: ",len(numIncorrect),end="")
        if len(numIncorrect) > 0:
            print(" ( ",end="")
            for i in numIncorrect:
                print(i, end="")
                print(")")
    # Comparing results
        if numCorrect >= 11:
            print("\nStudent PASSED the quiz.\n")
        else:
            print("\nStudent FAILED the quiz.\n")
        again = input("\nDo you have another student (y/n)? ")
        if again.lower() == 'n':
            break
main()