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]: ['9509', 'o', 'l', '9873', 'h', 'N', '2059', '8595', 'D', 'L', '5913', 'o', '1443', 'C', 'y', 'K', 'J', 'a', 'X', 'E']
[EX A]: 37392

[EX Q]: ['2325', '3259', '1947', '8065', 'H', '2329', 'h', 'l', 'k', 'R']
[EX A]: 17925

[EX Q]: ['j', '1585', 'H', 'c', 't', 'Q', '145', 'O', '5739', 'b', 'v']
[EX A]:
7469