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.

['e', '9777', '1835', 'N', '2425', '1427', 'o', '4459', '9961', '3285', '5199', 'x', 'e', '7727']
46095

['V', '8137', 'b', 'k', '2081', 'L', '9733', '7525', 'D', '2381', 'O']
29857

['W', 'm', '713', '1423', 'd', 'N', '9675', 'g', 'z', '8877', 'U', '2099', '3401', 'x', '3685', 'k', 'V', '9833']

39706