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:
['597', 'i', 'd', '3201', 'u', '1111', '8563', 'c', 'E', '5983', '6293']

Ex Output:
25748


Ex Input:
['9509', 'o', 'l', '9873', 'h', 'N', '2059', '8595', 'D', 'L', '5913', 'o', '1443', 'C', 'y', 'K', 'J', 'a', 'X', 'E']

Ex Output:
37392


Ex Input:
['P', '2841', '9827', 'B', '2817', '9815', '5041', '4323', 'w', 'D']

Ex Output:

34664