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:
['w', '2281', '8651', '2203', 'q', 'n', '4253']
answer:
17388


question:
['187', 'J', 'l', 'p', '1009', 'g', '5817', 'V', 'B', 'Z', '3329', '9253']
answer:
19595


question:
['2041', 'P', '4993', 'L', '3599', 'Q', 'J', 'z', '6159', 'd']
answer:

16792