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:
['5467', '3013', '8325', '4005', 'J', 'V', '395', '7477', 'E', 's', '1337', 'g', 'v', '8569', '9757', 'x', '3909', '2983', 's', '7917']

Ex Output:
63154


Ex Input:
['a', 'm', '3205', '1869', '1117', 'K', '5785']

Ex Output:
11976


Ex Input:
['5723', '9475', 'J', 'z', 'c', 'g', 'D', '9883', 'Z', '5343', 's', '3629', 'C', 'G', 'Y']

Ex Output:

34053