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: ['6941', 'I', 'j', '6135', '6525', '7853', '5607']

Output: 33061


Input: Consider Input: ['4089', '2385', 'E', 'K', '259', '295', '6649', '8645', 'n', '2577', '2683', '9041', 'Q', 'm', '4237']

Output: 40860


Input: Consider Input: ['8111', 'E', '4609', 't', 'f', 'S', '9319', '8305', '4185']


Output: 34529