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: ['E', 'X', 'C', 'v', '2803', 'g', 'b', '763']

Output: 3566


Input: Consider Input: ['8207', '4791', '3925', 'b', 'Z', '8471', '9215', '3117', 'p', '9095', 'h', 'k', 'E', 'h', '6047']

Output: 52868


Input: Consider Input: ['4585', '6251', '437', '3305', '8419', 'd', 's']


Output: 22997