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:
['6565', 'T', 'O', '2901', '5121', 'y', '9617', 't', '7825']
answer:
32029


question:
['4389', '8535', 'D', '6063', 'z', 'r', 'w', '5725', '291', 'a', '9059', '569', '2943', 'W']
answer:
37574


question:
['Z', '4977', 'f', 'w', '663', 'a', 'h', 'b', '5675', '1563', '1375', 'b', 'o', 'N', 'W', '5367', '7717']
answer:

27337