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', 'O', '1309', 'm', '9333', '8283', 'Z', 'K', 'X', 'w', '9855', '9075', '2013', '8485', '9973', '8779']

Ex Output:
67105


Ex Input:
['5829', '9755', '67', 'F', '6347', 'p', 'i', 'X', 'z', 'o', '2321', 'F', '6145', 'B', '3903']

Ex Output:
34367


Ex Input:
['8591', 'J', 'l', 'l', '7023', 'N', 'n']

Ex Output:

15614