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: ['o', 'J', 'B', '7765', '7781', '5513', '8721', 'u', '9557', 'C', 'A', '1281', '6565', 'H', '5559', '1695', '7577']

Output: 62014

Input: Consider Input: ['7231', '2813', '51', '1745', 'c', 'a', '4929', '3185', '5707', '2095', 'f', 'S']

Output: 27756

Input: Consider Input: ['2749', 'w', 'k', 'r', 'b', '9243', 'e', '93', '5163', 'A', '6655', '7151']
Output: 31054