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]: ['g', 'A', 'm', '4005', '8079', 'G']
[EX A]: 12084

[EX Q]: ['4811', 'Q', '2289', 'N', 'I', '7681', 'z', '8179', '3359', '5299', 'R', 'z', '8697', '5781', '4803', '2715', '6511', '1371']
[EX A]: 61496

[EX Q]: ['w', '107', '6471', '51', '5701', '5005', 'S', 'V', '3485', '3855', 'z', 'Q', '8123', 'i', 'v', '8447', '9153', '4639']
[EX A]:
55037