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:
['e', 'T', 'O', 'q', '5511', 'G', 'm', 'E', '2153', 'O', '1139', '5097', 'n', '5653', 'v']

Ex Output:
19553


Ex Input:
['w', '4181', 'g', 'j', '1823', 'q', 'i', '709']

Ex Output:
6713


Ex Input:
['3667', '283', '3625', '6547']

Ex Output:

14122