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:
['1165', '8341', '9685', '6749', '8571', 'p', '9355', '5319', '9587', 'B', '9581', '1719', 'Q', '577', '8883', 'S', '7851', '1069', 'i', 'y']

Ex Output:
88452


Ex Input:
['h', '1157', 'm', '8975', '6165', '7491', '1855', '3489', '9629', '631', '9641']

Ex Output:
49033


Ex Input:
['S', '5857', 'u', 'C', 'Y', 'i', 'A', 'j', '2177', '9697', 'Q']

Ex Output:

17731