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

Ex Output:
49033


Ex Input:
['X', '6189', '5435', 'y', '8931', '8987', 'F', '8377', 'k', '8631', '8717', 'q', '2923', 'g', '7225', 'j']

Ex Output:
65415


Ex Input:
['O', 'Z', '3995', '9943', '3443', 'q', '8325']

Ex Output:

25706