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.

['F', 'v', 'G', '6023', 'M', 'Q', 'A', '8477', '2079', 'A', '813', 'C', '3479', 'G', '1977', '5569', '8749', 'Y']
37166

['a', 'm', '3205', '1869', '1117', 'K', '5785']
11976

['S', 'W', 'd', '9931', '2995', '499', 'p', '2187', '3311', '9563', 'K', '8087', '1845']

38418