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]: ['y', 'F', '135', '7359', '8579', '6809', '3979', 'H', 'm', '5059', '373', 'Y']
[A]: 32293


[Q]: ['i', 'o', '1321', 'I', 'W', 'e', '1201', 'I', 'e', 'F', '9841', 'm', '9827', 'q', 'f', 'X', '8261']
[A]: 30451


[Q]: ['l', 'z', '5901', 'm', 'd', 'g', 'f', '7843', '155', '5669', 'e', 'm', 'Z', 'R', 'D', 'l', 'k', '467', '5879', '2597']
[A]:
28511