Sum of the separate numbers in a list

Question

Namely,
If the Input is:
a=[42,12]
So the output should be:
[6,3]

Pls help me revise my code as following:

f=[]
for i in range(len(a)):
b=a[i]
g=str(b)
total=0
for i in g:
c=int(i)
total+=c
f.append(total)
print(f)

Answer 1

There are only two errors, it should be like this:
a=[42, 12]
f=[]
for i in range(len(a)):
b=a[i]
print(b)
g=str(b)
total=0
for i in g:
c=int(i)
total+=c
f.append(total)
print(f)

f.append must be unindented once. And print(f) too.

Answer 2

It is easier if you tell me what it is supposed to do, now I had to guess, I think this might do what you want:
lst=[123,221,5]
def num_total_sort(lst):
f=[]

for i in range(len(lst)):
total=0
b=lst[i]
g=str(b)
for i in g:
c=int(i)
total+=c
f.append(total)
return f
print(num_total_sort(lst))

Answer 3

Grateful for your help again!

Answer 4

@Paul :)) could you revise this one too?
Thank you in advance...><

lst=[123,221,5]
def num_total_sort(lst):
f=[]
total=0
for i in range(len(lst)):
b=lst[i]
g=str(b)
for i in g:
c=int(i)
total+=c
f.append(total)
return f
num_total_sort(lst)

Answer 5

@Paul thank you. You are totally correct. Sorry for asking the stupid questions>_<