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:
['m', '6153', 'A', '6173', 'x', '7527', '8501', 'g', 'r', 'K', 'I', '3103', '8347']

Ex Output:
39804


Ex Input:
['8353', 'f', '1799', '6985', '2975', 'J', '9105', 'f', 'v', 'C', 'V', '9327', '3015', 'e', 'h', '439', '4969', 'c']

Ex Output:
46967


Ex Input:
['9883', 'y', '2533', '5985', 'J', 'V', 'v', '4113', '3557']

Ex Output:

26071