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: ['A', '6323', 'T', 'H', 'M', 'S', 'D', 'r', 'v', '8169', '7649', '5149', 'x', '6275']

Output: 33565


Input: Consider Input: ['m', 'g', '7251', '5873', '59', '7345']

Output: 20528


Input: Consider Input: ['5613', 'T', '9821', 'D', '4927', '7841']


Output: 28202