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.

Ex Input:
['8353', 'f', '1799', '6985', '2975', 'J', '9105', 'f', 'v', 'C', 'V', '9327', '3015', 'e', 'h', '439', '4969', 'c']

Ex Output:
46967


Ex Input:
['o', '8089', '2159', '943', '1255', 'w', 'Y', '3723', 'n', '7767', '2209', 'F', 'c', 'J', '5259', '4427', 'n', 'U']

Ex Output:
35831


Ex Input:
['N', '279', 'd', '9043', '5569', 'c', 'E', '6405', 'i', 'l', '4543', 'D', '8211']

Ex Output:

34050