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:
['a', 'm', '3205', '1869', '1117', 'K', '5785']
answer:
11976


question:
['2683', '4431']
answer:
7114


question:
['8809', '4559', '2715', 'w', '9903', 'h', 'u', 'F', '9369', '6149']
answer:

41504