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.

Ex Input:
['F', 'v', 'G', '6023', 'M', 'Q', 'A', '8477', '2079', 'A', '813', 'C', '3479', 'G', '1977', '5569', '8749', 'Y']

Ex Output:
37166


Ex Input:
['1073', 'i', 'o', 'j', 'O', 'g', 'X', '3261', '5105', '4831', 'J']

Ex Output:
14270


Ex Input:
['p', 'h', '7681', 'H', '2593', 'b', '9609', 'x', 'l', 'g', '2941', 'Z', '1317', 'd']

Ex Output:

24141