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:
['8809', '4559', '2715', 'w', '9903', 'h', 'u', 'F', '9369', '6149']

Ex Output:
41504


Ex Input:
['7361', '3605', 'V', '2039', '9665', 'X', 'b', '1195', '657', '6509', '7195', '2013', '1847', 'v', '9499', '1761']

Ex Output:
53346


Ex Input:
['T', '3965', '383', '1713', 'M', '7357', 'x', '8433', 'Z', 'p', 'M', '989', 'G', '2123']

Ex Output:

24963