How to add numbers in a list

[DragonG]

I got this calculator that turns each letter in a word to its corresponding number in the alphabet. For example, if you enter the word "the", you get [20, 8, 5]. How can I make it so that the numbers in the list are added? Also, how can I make it so that each digit of the number is added? For example, for the word "the", I want two outputs. I want 33 and 6. Thanks for the help!

input = raw_input('Write Text: ')
input = input.lower()
output = []
for character in input:
    number = ord(character) - 96
    output.append(number)
print output

[Larz60+]

>>> alist = [4, 7, 68, 3, 8]
>>> sum(alist)
90
>>>

[DragonG]

>>> alist = [4, 7, 68, 3, 8]
>>> sum(alist)
90
>>>

Thanks for answering, how would I put this into my code?

[Larz60+]

First, you should start using python 3 from the start. Python 2 is coming to End of Life (already announced). Much of the code that I write will only work in python 3.6 or newer. That said:

input = raw_input('Write Text: ')
input = input.lower()
output = []
for character in input:
    number = ord(character) - 96
    output.append(number)
print(sum(output))