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

Output: 14655


Input: Consider Input: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']

Output: 14354


Input: Consider Input: ['9777', 'y', '6735', 'Y', '4575', 'j']


Output: 21087