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: ['d', 'b', 'W', '3201', 'C', 'o', '5187', '9723', '8177', 'F', '6703', 'U', '1393', '1035', '3507', '5993', '3857', 'r', 'C', 'j']

A: 48776
****
Q: ['773', 'e', '4451', 'S', 'I', 'r', 'e', 'V', 'Q', 'g', 'J', 'L', '7655', 'O']

A: 12879
****
Q: ['z', 't', 'u', 'a', 'V', 'c', '4923', 'N', 'I', '6901', 'J', '4287', 's', 'h', 'b', '6421', 'a', '3963', 'P']

A:
26495
****