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:
['t', '7015', '2239', 'I', 'F', 'E', '1363', '9615', '6179', '2539', 'z', '8745', '1319', '4715', '9071', 'K', '3707', '6149', 'd']

Ex Output:
62656


Ex Input:
['s', 'g', 'Z', '8919', 'R']

Ex Output:
8919


Ex Input:
['X', 'x', 'J', '3905', 'p', '8349', 'R', '8409', '9985', '309', '9043', 'C', 'V', '3067', 'J', '7043', 'e', 'g']

Ex Output:

50110