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 Q]: ['a', 'q', '4085', '6327', '6869', 'Z', 't', '7057', '1965', 'p', 'o']
[EX A]: 26303

[EX Q]: ['h', '1157', 'm', '8975', '6165', '7491', '1855', '3489', '9629', '631', '9641']
[EX A]: 49033

[EX Q]: ['m', '1479', 's', '4693', 'V', '7715', 'u', 'Q', 'V', '6047', 'Q', 'i', '1119', 'v', 'Z', 'C', '8427', '3733', 'c']
[EX A]:
33213