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

Output: 27899


Input: Consider Input: ['1147', 'f']

Output: 1147


Input: Consider Input: ['3937', '5159', 'p', '1705', '9079', 'e', 'B', '2789', '4235', '6063', 'N']


Output: 32967