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.

['q', 'U', 'I', '5245', 'g', 'Y', 's', 'V', 'b', 'V', 'D', '1193', 'p']
6438

['K', '5815', 'E', 'c', '7379', '4995', 'w', 'B', 'j', '6227', 'B', '733', '1491', '3191', '9413', '2751', 'O', 'J', '6239', '3521']
51755

['5187', 'N', 'P', 'o', 'w', 'D', '9387', 'A', 'T', 'l', 'a']

14574