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.

Input: Consider Input: ['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']

Output: 14334


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

Output: 46967


Input: Consider Input: ['e', 'b', '2527', '6627', '6767', '4965', '2185', '6347']


Output: 29418