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.

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

['Y', 'X']
0

['b', 'A', 'z', 'a', 'N', 'I', 'L', 'h', 'q', 'd']

0