In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.

Q: ['6551', 'm', '3941', 'F', 'K', 'u', '7981', '9581', 'X', 'M', 'N', 'e', 'G', 'i']

A: 28054
****
Q: ['8821', '7221']

A: 16042
****
Q: ['5813', 'M', 'I', 'K', '6673']

A:
12486
****