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.

Ex Input:
['a', 'q', '4085', '6327', '6869', 'Z', 't', '7057', '1965', 'p', 'o']

Ex Output:
26303


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

Ex Output:
14551


Ex Input:
['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']

Ex Output:

18610