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:
['M', '9387', '7125', 'c', '1295', 'X', 'l', '9867']
answer:
27674

question:
['3215', 'h', '9133', '2771', 'F', 'x', '9033', '709', 'q']
answer:
24861

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