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: ['b', 'O', '7023', 'q', '2667', '681', 'C', '5707', '7125', 'q', 'Q', '1375', '8869', '6709']

Output: 40156


Input: Consider Input: ['6723', '1', '6357', '1497', 'A', 'p', 'N', 'T']

Output: 14578


Input: Consider Input: ['5', '6071', '8327', 'x', '8007', 'L', 'd', '7121', 'Q', '2559', '1249', 'e']


Output: 33339