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: ['J', '177', '8449', '2067', 'a', 'G', 'p', 'd', '5161', 'M', '2403', '5541', 'q', '4375', 'O']

Output: 28173


Input: Consider Input: ['7465', 'G', '105', 'A', '3987', 'O', '7385', 'C', '8957']

Output: 27899


Input: Consider Input: ['h', '5595', 'H', 'h', 'r', 'i']


Output: 5595