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]: ['6723', '1', '6357', '1497', 'A', 'p', 'N', 'T']
[EX A]: 14578

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

[EX Q]: ['x', '7333', '8659', '3325', 'a', '117', 'B', '9247', '7331', '2293', 'w']
[EX A]:
38305