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:
['g', 'A', 'm', '4005', '8079', 'G']
answer:
12084


question:
['D', 'P', '9951', '2897', 'V', 'C', 'B', 'H', 'c', 'h', '2843', 'a']
answer:
15691


question:
['x', 'C', '2227', 'A', '8265', 'H', 'I']
answer:

10492