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: ['v', 'Y', '4135', '8645', '263', '5377', '8677', 'Z', 'W', 'g', 'n', 'r', 's', '8513', '5677', 'u', '3033', 'I']

A: 44320
****
Q: ['H', 'i', '8085', 'E', 'q']

A: 8085
****
Q: ['l', 'V', 'S', '8371', '173', '3483', '851', '4659', 'F', '4229', 's', '8367', 'G', 'U', '9391']

A:
39524
****