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]: ['N', '1337', 'C', 'T', '863', 'j', '2369', 'P', 'A', 'x', '5725', '2333', 'Q', '9149', 'Q', '8529', 'N']
[EX A]: 30305

[EX Q]: ['8297', 'e', 'q', '8417', 'K', 'h', 'f', 'd', '8305', 'C', 'F']
[EX A]:
25019