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:
['2923', '3573', '6179', '7673', '6551', 'B', '315', '5169', 'm', '9405', 'm', 'Z']
answer:
41788


question:
['q', 'Y', '6021', '4045']
answer:
10066


question:
['4749', '6931', 'v', 'b', 'g', '7485', '8939', 'h', '2395']
answer:

30499