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:
['v', '4119', 'I', '475', 'd', 'L', '909', 'F', 'V', '775', 'k', 'A', '9411', '8383', 'W', '1521', 'z', 'j', '7057', 'I']

Ex Output:
32650


Ex Input:
['1123', '2765', '9395', '9695', '7963', '3813', '9987', 'y', 'N', 'F', '2757', 'o', 'r', '4827', '3523', 'G', 'j', '9785', 'C']

Ex Output:
65633


Ex Input:
['Q', 'B', 'Q', '8631', 'q', 'l', 'G', '3463', 's', 'S', '3107', 'I', 'v', '8981']

Ex Output:

24182