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: ['3575', '8877', '3231', 'v', '9083', '317', 'M', '8975', 'x', 'F']

Output: 34058


Input: Consider Input: ['y', 'F', '135', '7359', '8579', '6809', '3979', 'H', 'm', '5059', '373', 'Y']

Output: 32293


Input: Consider Input: ['5945', 'I', '4721', '5639', '6109']


Output: 22414