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.

[Q]: ['o', 'L', 'E', 'V', 'D', 's', 'Z', 'm', 'a', '2785', 'I', 'v', 'B', '7909', '1599', 'V', 'N']
[A]: 12293


[Q]: ['3629', '8785', '9537', '8479', '3523', 'c', 'C', '5093', '2405', 'y', '1145', '8987', 'f']
[A]: 51583


[Q]: ['7555', 'U', '3517', 'D', '1', '8011', 's', '2447', 'n', 'n', 't', 'b', '5407']
[A]:
26938