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: ['4159', 'H', 'h', 'W', 'w', 'i', 'G', 'l', 'j', '5467', '9219', 'j', 'q', 'n', '5465', '6197', 'J', 'y']

Output: 30507


Input: Consider Input: ['d', 'b', 'W', '3201', 'C', 'o', '5187', '9723', '8177', 'F', '6703', 'U', '1393', '1035', '3507', '5993', '3857', 'r', 'C', 'j']

Output: 48776


Input: Consider Input: ['2107', 'D', 'k', '4705', '4315', '7867', '3389', '4477', '1267', '8751', '2439', 'O', '6613', '725', '3621', 'q', 'l', 'o', 'K', '7417']


Output: 57693