Answer:
grade = int(input("Enter grade: ")
if grade > 90:
  print("A*")
elif grade > 80 and grade < 90:
  print("A")
elif grade > 70 and grade < 80:
  print("B")
elif grade > 60 and grade < 70:
  print("C")
elif grade > 40 and grade < 50:
  print("E")
else:
  print("Fail")
Explanation: