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]: ['i', 'A', 'a']
[A]: 0


[Q]: ['l', '2511', '2071', 'o', 'F', '7583', '1909', '1859', '3299', '3853', 'h', 'P', 'P', '9175', 'B', 'F']
[A]: 32260


[Q]: ['9125', '1443', '2303', 'O', '8463', '401', '3983', 'g', '4327', 'z', 'n', 'F', 'Q', 'j', '9885']
[A]:
39930