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: ['D', '9679', 'e', '5537', 'G', 'l', '2653', 'a', 'Y', '8467', 'q', 'L', '7239', 'O']

A: 33575
****
Q: ['R', 'Q', '1607', '977', '8335', 'W', 'f', '4255', 'J', '6757', 's', '9375', '6661']

A:
37967
****