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: ['p', 'V', '673', '8483', 'S']

Output: 9156


Input: Consider Input: ['q', 'Y', '6021', '4045']

Output: 10066


Input: Consider Input: ['e', 'j', 'Q', '1461', '1773', 'e', '4335', 'I', 'J', 'I', 'Y', '7777', 'Y', 'y', '1293', '4539', '6073']


Output: 27251