boob=input("enter your girlfriend's cup :")

if boob == 'A-'or'a-':

    print("I want to make you feel better, but I don't know what to say")

else :

    if boob == 'A'or'a':

        print("i'm sorry to hear that")

    else:

        if boob == 'A+'or'a+':

            print("not bad")

        else:

            if boob == 'B-'or'b-':

                print("so so ")

            else:

                if boob =='B'or'b':

                    print("fine")

                else:

                    print("i envy you!!!!")


왜틀린거죠? 컵 사이즈 다르게 입력해도 계속 I want to make you feel better, but I don't know what to say만 출력되요 

잘못친거임??