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: ['8147', '3191']

A: 11338
****
Q: ['b', 's', 'v', '4757', '9063', 'I', '8397', '7975', 'Q']

A: 30192
****
Q: ['U', 'o', '9721', '2633', 'l', '6151', 'L', '2497', 'h', 'F', '6689', '9611', '1147', 'g', '409', '9289', 'E']

A:
48147
****