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]: ['4145', 't']
[A]: 4145


[Q]: ['d', '9283', '835', '8571', 'M', 'W', 'W', 't', 'x', 's', '2059', 'r', 'g', '6657', 'C', '3809', 'n']
[A]:
31214