instruction:
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.
question:
['o', 'O', 'H', '7619', '6435', 'X', 'g', '1663']
answer:
15717


question:
['v', 'a', 'O', 'S', 'r', 'T', 'r', 'K', 'K', '7781', '1749']
answer:
9530


question:
['93', 'D', 'U', 'D', '989', '6479', '3563', '8515', 'M', 'v', '1965', '1829', 'b']
answer:

23433