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.

['5233', 'i', 'Z', 'v', '4531', 'j', '61', '1725', '5915', '1677', 'F', 'K', 'M', 'Z']
19142

['5289', '1701', '5925', '7973', 'F', 'V', 'y', '5903', 'i']
26791

['5495', 'U', '761', '3361', 'T', 'G', 'w']

9617