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: ['2585', '3043', 'w', '7697', '53', 't', 'A']

Output: 13378


Input: Consider Input: ['A', '771', 'Q', 'b', '9929', '4991', 'q', '9863', '4363', '5721', 'C', '991', 'j', 'r', 'Q', 'B', 'K']

Output: 36629


Input: Consider Input: ['1341', '9857', 'Y', '7449', 'k', '3921', 'Q', 'S', '8139', 'c', '5919', 'O', 'h', 'R', '1407']


Output: 38033