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:
['h', '2295', '2913', 'I', '5273', 'L', '2739', '8227', '6537', 'e', '6491', '5463', 'i', '4337', '537']

Ex Output:
44812


Ex Input:
['j', 'A', 'L', 'i', 'I', '3827', '8245', 'H', 'J', '8117', 'w', '4659', 'Y', 'x', 'K']

Ex Output:
24848


Ex Input:
['529', '3743', '8891', 'c', '1193', '6145', 'q', '8737', 'P']

Ex Output:

29238