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: ['8147', '3191']

Output: 11338


Input: Consider Input: ['4201', '6445', '4009', 'q']

Output: 14655


Input: Consider Input: ['4267', 'B', '7481', '7459', '4703', '3473', 'h', '8305', 'a', '5261', '5585', 'B']


Output: 46534