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', 'T', 'O', 'q', '5511', 'G', 'm', 'E', '2153', 'O', '1139', '5097', 'n', '5653', 'v']

Output: 19553

Input: Consider Input: ['l', 'B', 'Y', '7543', '5091', '1917']

Output: 14551

Input: Consider Input: ['4341', '5121', '7141', '4563', 'p', '5745', 'A', '8373', 'p', 'm', '535', 'C', '8657', '3697', '1273', '9649', '7345']
Output: 66440