def getAge():
    validAnswer = False
    while validAnswer == False:
        age = int(input("Enter your age:\n\n>>> "))
        if age > 10 and age < 100:
            print("Valid age entered. You may now play.")
            return age
        else:
            print("Enter a valid age.")


def menu():
    print("Welcome to the gambling arena.")
    print("To play, you must enter your age.")
    age = getAge()
    print("Ok! You are", age, "years old. You can now play!")


menu()