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', '9593', '2079', '5959', 'T', '5849', 'w', 'b', '9743', '6689', 'k', 'J']

Output: 39912


Input: Consider Input: ['Y', '263', '641', '1163', 'p', 'r', 'L', '4425', 'C', '7585']

Output: 14077


Input: Consider Input: ['4341', '5121', '7141', '4563', 'p', '5745', 'A', '8373', 'p', 'm', '535', 'C', '8657', '3697', '1273', '9649', '7345']


Output: 66440