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:
['L', 'i', '9225', 'w', '5365', '8077', '2733', 'W', '8493', 'B']
answer:
33893


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


question:
['u', 'N', 'F', 'O', '835', 's', 'X', '5753', '4457', 'P', '3947', 'H', '1723', '3537']
answer:

20252