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]: ['a', 'f', '2185', 'N', '6381', '6429', '7499', 'd', '757', 'k', 'k', 'b', 'N', '2697', 'A', '8037']
[EX A]: 33985

[EX Q]: ['v', '9511', 'f', 'q']
[EX A]: 9511

[EX Q]: ['v', '1577', '4391', '883', '1913', '3369', '1823', '4265', 'U', 'E', '2301', 'h']
[EX A]:
20522