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]: ['o', 'J', 'B', '7765', '7781', '5513', '8721', 'u', '9557', 'C', 'A', '1281', '6565', 'H', '5559', '1695', '7577']
[EX A]: 62014

[EX Q]: ['C', 'v', '1353', 'e', 'x', 'A', 'D', '1243', '477', 'z', '3483', '5213', 'k', 'm', 'n']
[EX A]: 11769

[EX Q]: ['7697', 'g', '3673', '1345', '461', '7865', 'm', '3821', 'a', '6645', '9439']
[EX A]:
40946