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:
['D', '8591', 'b', 'n', 'e', '883', '8923', '245', 'z', '5643', 'C', '2911', '9275', '711', '7299', '3449', '4799', '6065']

Ex Output:
58794


Ex Input:
['u', 'p', '2605', 'C', 'D', 'G', 'U', '1667', '8007', 'x', '2245', '4909', 'z', 'd', 'a', 'W', '8967', '5125', '3753']

Ex Output:

37278