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]: ['i', 'o', '5363', '5937', 'x', '6705', 'w', '5495', 'E', '9823', 'F', '83', '8443', '5223']
[EX A]: 47072

[EX Q]: ['B', 'u', '9227', 'b', '8767']
[EX A]: 17994

[EX Q]: ['9135', 'K', 't', 'G', 'p', '8029', '2657', '4147', '5193', '5029', 'j', '3111', 'Z', '391', 'h']
[EX A]:
37692