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]: ['y', 'F', '135', '7359', '8579', '6809', '3979', 'H', 'm', '5059', '373', 'Y']
[EX A]: 32293

[EX Q]: ['k', '4991', '7289', '4355', 'I', '8415', '5175', '5329', 'G', 'a', '7193', 't', '8821', 'j', '7239', '405', 'y', 'O', '9881', 'w']
[EX A]: 69093

[EX Q]: ['6641', 'E', '9569', '1713', 'q', '3531', 'S', '3669', 'f', '9059', '1981', 'T', '1159', 'T', 'p']
[EX A]:
37322