grade = eval(input("Enter your grade(0-100):"))

if grade >= 90:
    print("You got an A :)")
elif grade >= 80:
    print("You got a B")
elif grade >= 70:
    print("You got a C")
elif grade >= 60:
    print("You got a D")
else:
    print("You are ffffaaaaiiiillll :(")