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: ['135', 'a', 'X', '8067', '8447', '4009', '4221', 'o', 'A', 'x']

A: 24879
****
Q: ['d', 'b', 'W', '3201', 'C', 'o', '5187', '9723', '8177', 'F', '6703', 'U', '1393', '1035', '3507', '5993', '3857', 'r', 'C', 'j']

A: 48776
****
Q: ['5209', 'O', 'i', 'U', 'O', '1361', '6569', '6017', '1519', 'E', 'p', '1157', 'J', 'D', 'U', 'F', '7991', 'Z', '5905', 'g']

A:
35728
****