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.

['b', 'O', '7023', 'q', '2667', '681', 'C', '5707', '7125', 'q', 'Q', '1375', '8869', '6709']
40156

['x', '9895', 'r', 'H', 'C']
9895

['h', '1455', '9627', 'c']

11082