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]: ['6515', '5525', 'o', 'Q', '9049', 'f', 'p', 'X', '2057', 'h', '7585', '3617', '7817']
[A]: 42165


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


[Q]: ['7965', 'Y', '1565', 'm', 'M', '6349', 's', '7611', '6229', 'v', '1163']
[A]:
30882