total = input("How many questions total?:")

answered = input("Correct answers:")

score = (int(answered) / int(total))  * 100

print (score, "%")

grade = "F"

if score == 100:

  grade = "A+"

elif score >= 94:

  grade = "A"

elif score >= 90:

  grade = "A-"

elif score >= 87:

  grade = "B+"

elif score >= 84:

  grade = "B"

elif score >= 80:

  grade = "B-"

elif score >= 77:

  grade = "C+"

elif score >= 74:

  grade = "C"

elif score >= 70:

  grade = "C-"

elif score >= 67:

  grade = "D+"

elif score >= 64:

  grade = "D"

elif score >= 60:

  grade = "D-"

print("Your grade is:",grade)