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: ['U', '5885', 'u', 'Y', 's', 'w', 'j', '9629', '9505', 'U']

Output: 25019


Input: Consider Input: ['6731', 'f', '4561', '5601', 'i']

Output: 16893


Input: Consider Input: ['L', '9483', '6277', 'G', '3417', '9877', 'e', '2167', '8627', '9245', '235', 'a']


Output: 49328