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.

['9401', 'w', 'b', '8287', 'n', 'O', 'H', 'h', '45', '2337']
20070

['U', '9593', '2079', '5959', 'T', '5849', 'w', 'b', '9743', '6689', 'k', 'J']
39912

['5115', '6711', '2685', 'J', '9845', '285', '1609', 'X', '271', 'I', '3059', '3341', '5359', 'C', '9043', 'v']

47323