Thermometer exercise 24/5

while True:
    while True:
        CF= input("Please select 1 (Celcius) or 2 (Fahrenheit)")
        T= input("Please input temperature")
    
        try:
            CF= int(CF)
            T=float(T)
            #break
            if CF==1 or CF==2:
                break
            else:
                print("please input either 1 or 2")
        except ValueError:
            print("please input a number!")
            
    print(f"Great! You chose option {CF} and temperature {T}. Now calculating...")
    
    # (Your perfect loop stays exactly the same up here!)
    
    if CF == 1:
        result = (9 / 5) * T + 32
        print(f"Celsius {T} degree = Fahrenheit {result} degree")
    
    elif CF == 2:
        result = (5 / 9) * (T - 32)
        print(f"Fahrenheit {T} degree = Celsius {result} degree")
    
    else:
        print("Please input either 1 or 2 for the selection!")
    print('-'*40)
    # NEW EXIT CHALLENGE CODE:
    quit_choice = input("Do you want to calculate another temperature? (y/n): ")
    
    if quit_choice.lower() == 'n':
        print("Thank you for using the temperature converter. Goodbye!")
        break # This breaks the OUTER loop and closes the script!