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.

['2039', '1679', '9675', 'S', 'J', '2069', 'r', 'e']
15462

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

['h', '4349', '7025', '1923', '3859', 'T', '3695', '3671', '2507', 'Z', '5449']

32478